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"I have owned 5 different scooters over the years. 250cc CFMOTO, Roketa 150cc 4-stroke GY6, United Motors 50cc 2-stroke and a SunL 50cc 4-stroke QMB139. I can rest assured that no matter what make or model I have, Partsforscooters.com will always have the parts I need. You have a customer for life!"
Mike R.-California

"I can say, without hesitation, service at your company far exceeds any other of the many distributors & manufacturers I deal with on a daily basis. Prior to opening my shop I spent 23 years as a project manager & customer service manager so I set the bar high for customer service & efficiency. Good job!" Bill Randall, President Fun & Functional Transportation

 
Dr. Pulley QMB139 Variator Kit
 
  Part Number: 169-266
  Old Part Number:
 
 
 
 
 
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img-qind.JPGDr. Pulley Performance Variator Assembly for 50cc 4-stroke QMB139 engines.
  • Specially Designed Ramp Shape
  • Extended Ramp Length
  • Adjustable Boss Length
  • Racing Type Ramp Plate
 
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img-qind.JPGDr. Pulley 16x13 Sliding Roller Weights for 50cc 4-stroke QMB139 engines.
 
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Dr. Pulley 16x13 Round Roller Weights 
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img-qind.JPGDr. Pulley 16x13 Round Roller Weights for 50cc 4-stroke QMB139 engines.
 
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img-qind.JPGDr. Pulley Variator Slides for 50cc 4-stroke QMB139 engines.
 
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Dr. Pulley HiT Clutch 
Part number: 169-223
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img-qind.JPGDr. Pulley HiT Clutch 161301 with Bell for Scooters with 50cc/90cc/100cc Honda, Piaggio, PGO, Kymco or SYM engines as well as scooters with 50cc, 4-stroke QMB139 engines.
 
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Dr. Pulley HiT Clutch 
Part number: 169-224
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img-qind.JPGDr. Pulley HiT Clutch 161301 with Bell for Scooters with 50cc/90cc/100cc Honda, Piaggio, PGO, Kymco, SYM or QMB139 engines and four-wheelers with 50cc/70cc/90cc/110cc Kymco, SYM, Honda,  Piaggio or QMB139 engines. This clutch assembly is recommended for ATVs, Buggys and GoKarts or Scooters with modified cylinders.