Quick view Details GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR MSRP: Now: $39.95 Add to Cart Compare Quick view Details UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT MSRP: Now: $30.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* MSRP: Now: $14.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT MSRP: Now: $194.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 MSRP: Now: $124.95 Out of stock Compare Quick view Details UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL MSRP: Now: $73.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 MSRP: Now: $109.95 Add to Cart Compare Quick view Details OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS MSRP: Now: $2.50 Add to Cart Compare Quick view Details GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS MSRP: Now: $2.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* MSRP: Now: $2.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT MSRP: Now: $36.95 Out of stock Compare Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT MSRP: Now: $30.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* MSRP: Now: $14.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT MSRP: Now: $194.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 MSRP: Now: $124.95 Out of stock Compare Quick view Details UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL MSRP: Now: $73.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 MSRP: Now: $109.95 Add to Cart Compare Quick view Details OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS MSRP: Now: $2.50 Add to Cart Compare Quick view Details GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS MSRP: Now: $2.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* MSRP: Now: $2.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT MSRP: Now: $36.95 Out of stock Compare Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* MSRP: Now: $14.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT MSRP: Now: $194.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 MSRP: Now: $124.95 Out of stock Compare Quick view Details UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL MSRP: Now: $73.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 MSRP: Now: $109.95 Add to Cart Compare Quick view Details OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS MSRP: Now: $2.50 Add to Cart Compare Quick view Details GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS MSRP: Now: $2.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* MSRP: Now: $2.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT MSRP: Now: $36.95 Out of stock Compare Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT MSRP: Now: $194.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 MSRP: Now: $124.95 Out of stock Compare Quick view Details UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL MSRP: Now: $73.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 MSRP: Now: $109.95 Add to Cart Compare Quick view Details OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS MSRP: Now: $2.50 Add to Cart Compare Quick view Details GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS MSRP: Now: $2.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* MSRP: Now: $2.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT MSRP: Now: $36.95 Out of stock Compare Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 MSRP: Now: $124.95 Out of stock Compare Quick view Details UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL MSRP: Now: $73.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 MSRP: Now: $109.95 Add to Cart Compare Quick view Details OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS MSRP: Now: $2.50 Add to Cart Compare Quick view Details GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS MSRP: Now: $2.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* MSRP: Now: $2.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT MSRP: Now: $36.95 Out of stock Compare Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL MSRP: Now: $73.95 Add to Cart Compare Quick view Details NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 MSRP: Now: $109.95 Add to Cart Compare Quick view Details OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS MSRP: Now: $2.50 Add to Cart Compare Quick view Details GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS MSRP: Now: $2.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* MSRP: Now: $2.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT MSRP: Now: $36.95 Out of stock Compare Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 MSRP: Now: $109.95 Add to Cart Compare Quick view Details OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS MSRP: Now: $2.50 Add to Cart Compare Quick view Details GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS MSRP: Now: $2.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* MSRP: Now: $2.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT MSRP: Now: $36.95 Out of stock Compare Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS MSRP: Now: $2.50 Add to Cart Compare Quick view Details GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS MSRP: Now: $2.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* MSRP: Now: $2.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT MSRP: Now: $36.95 Out of stock Compare Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS MSRP: Now: $2.95 Add to Cart Compare Quick view Details GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* MSRP: Now: $2.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT MSRP: Now: $36.95 Out of stock Compare Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* MSRP: Now: $2.95 Add to Cart Compare Quick view Details SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT MSRP: Now: $36.95 Out of stock Compare Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT MSRP: Now: $36.95 Out of stock Compare Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view Details OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR MSRP: Now: $69.99 Add to Cart Compare Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view GY6 STORE | sku: 90089, 87820, 87954, 87780 100cc (50mm BORE) KIT FOR SCOOTERS QMB139 MOTORS *69mm VALVES* NON EGR 100cc (50mm BORE) UPGRADE KIT (#2) FOR QMB139 MOTORS TRUE DISPLACEMENT *81.3cc WITH STOCK CRANK* PEOPLE REFER TO THIS KIT AS 100cc THIS KIT IS TO UPGRADE YOUR STOCK 50cc QMB139 MOTOR AND TURN IT INTO A 81.3 / 100cc MOTOR ADDING MORE... MSRP: Now: $39.95 Add to Cart Compare Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view UNIVERSAL PARTS | sku: 169-332 SSP-G QMB139 50cc - 100cc BEARING & SEAL KIT CRANKSHAFT BEARING AND SEAL KIT FOR QMB139 50cc, 4-STROKE ENGINES. THIS PRECISION TAIWANESE BEARING KIT CONTAINS THE RIGHT AND LEFT CRANKSHAFT BEARINGS AND SEALS. INCLUDES: 6204C3 BEARING - OUTER DIAMETER: 47mm, INNER DIAMETER: 20mm,... MSRP: Now: $30.95 Add to Cart Compare Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view NARAKU | sku: 137-28 NARAKU CYLINDER GASKET SET *52.4mm* NARAKU REPLACEMENT GASKET SET FOR QMB139 4-STROKE 52.4mm BIG BORE CYLINDER AND HEAD KIT. *PACKAGING AND NON-METAL GASKETS MAY VARY IN APPEARANCE FITS SOME MODELS OF TAO MOTORS, TAOTAO, ICE BEAR, WOLF, JMSTAR, ROKETA, SUNL, TANK,... MSRP: Now: $14.95 Add to Cart Compare Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view SSP-G | sku: 169-518 SSP-G 50MM QMB139 BIG BORE CYLINDER & HEAD KIT SSP-G QMB139 50mm PERFORMANCE CYLINDER & HEAD KIT INCLUDES CYLINDER, PISTON, PISTON RINGS, WRIST PIN, CIR CLIPS, COMPLETE CYLINDER HEAD WITH 64mm VALVES, EXHAUST GASKET, INTAKE GASKET, AND CAM CHAIN TENSIONER... MSRP: Now: $194.95 Add to Cart Compare Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view NARAKU | sku: 137-13 NARAKU CYLINDER UPGRADE KIT (72cc, IRON, 47mm BORE) FOR QMB139 NARAKU 72cc BIG BORE CYLINDER KIT FOR CHINESE SCOOTERS THIS KIT HAS A 47mm CYLINDER BORE UPGRADES TO 72cc CYLINDER BORE: 47mm CYLINDER SLEEVE OUTER DIAMETER: 53.1mm WRIST PIN DIAMETER: 13mm TOTAL PISTON HEIGHT: 34... MSRP: Now: $124.95 Out of stock Compare Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view UNIVERSAL PARTS | sku: 169-337 CHROME BELT DRIVE / CRANKCASE COVER FOR 50cc QMB139 MOTORS SHORT CASE MODEL CHROME 50cc BELT DRIVE / CRANKCASE COVERFOR CHINESE SCOOTERS, ATVS, AND KARTS WITH 50cc QMB139 MOTORSSHORT VERSION FOR SCOOTERS WITH 10" TIRESOVERALL LENGTH 16"FITS JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, TAOTAO, GATORAND MANY OTHERS MSRP: Now: $73.95 Add to Cart Compare Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view NARAKU | sku: 137-78 NARAKU CRANKSHAFT HEAVY DUTY 16 TOOTH FOR 50cc - 100cc QMB139 NARAKU PERFORMANCE HEAVY DUTY CRANKSHAFT FOR 50cc, 4-STROKE QMB139 ENGINES - OIL PUMP SPROCKET 16 TOOTH OEM-QUALITY NARAKU CRANKSHAFT MATCHES JAPANESE AND TAIWANESE ALTERNATIVES. KITTED WITH HIGH QUALITY, HEAVY DUTY BEARINGS WHICH ALLOW FOR... MSRP: Now: $109.95 Add to Cart Compare Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view OKO | sku: 145-78 OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 150cc OR QMB139 50cc MOTORS OKO CR7HNS SPARK PLUG FOR SCOOTER WITH GY6 MOTORS FITS MOST CHINESE SCOOTERS WITH GY6 150cc OR QMB139 50cc MOTORS THREAD SIZE: 10mmREACH: 12.7mm (1/2 INCH)HEX SIZE: 16mm (5/8 INCH)GAP: 0.7mm (.028 INCH)HEAT RANGE: 7DOES NOT INCLUDE TERMINAL... MSRP: Now: $2.50 Add to Cart Compare Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view GY6 STORE 64mm VALVE SET FOR SCOOTERS WITH 50cc QMB139 MOTORS 50cc 64mm VALVE SET FOR SCOOTERS WITH QMB139 MOTORS INTAKE OAL 64mmINTAKE DIA 18.5mmINTAKE VALVE SHAFT 5mmEXHAUST OAL 64mmEXHAUST DIA 16mmEXHAUSTVALVE SHAFT 5mm FITS MANY MODELS LIKE JONWAY, JMSTAR, ROKETA, SUNL,... MSRP: Now: $2.95 Add to Cart Compare Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view GY6 STORE | sku: 62770 WOODRUFF / CRANKSHAFT KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS *BUYER GETS 4* WOODRUFF KEY FOR SCOOTERS WITH 50cc QMB139 MOTORS SEE # 2 ON PICTURE BUYER GETS 4 KEYS FITS MOST MODELS OF TAOTAO, WOLF, ICE BEAR, JONWAY, JMSTAR, ROKETA, SUNL, TANK, PEACE, GATORAND MANY... MSRP: Now: $2.95 Add to Cart Compare Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected × OK
Quick view SSP-G | sku: 169-380 SSP-G QMB139 52mm PISTON & PISTON RINGS KIT SSP-G PISTON KIT FOR THE 50cc QMB139 4-STROKE 52mm FOR RACING BIG BORE CYLINDER SET PISTON OUTER DIAMETER: 52mmTOTAL PISTON HEIGHT: 34.8mmCOMPRESSION HEIGHT: 17.3mmWRIST PIN DIAMETER: 13mmWRIST PIN LENGTH: 36mmINCLUDES PISTON,... MSRP: Now: $36.95 Out of stock Compare Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected
Quick view OKO | sku: 169-507 OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO 50cc 60cc 80cc 100cc HIGH TORQUE QMB139 STARTER MOTOR OKO HIGH TORQUE STARTER MOTOR FOR 50cc - 100cc QMB139 4-STROKE ENGINES THIS STARTER MOTOR IS RECOMMENDED FOR ANY QMB WITH A BIG BORE KIT OR STROKER BIG BORE KIT. RECOMMEND INSTALL HEAVY... MSRP: Now: $69.99 Add to Cart Compare Previous 1 2 3 4 5 6 Next Previous 1 2 3 4 5 6 Next Compare Selected
