49cc (Standard) Cylinder Piston Top End Kit For GY6-50 QMB139 Chinese Scooter Motors. Bore=39mm



Part #: 633497
MSRP: $44.99
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This cylinder kit used on QMB139 (GY6-50) 49cc scooters.



Common applications include:
Alta 50cc Alta-49 (Jonway) (Vin: TCB)
E-Ton 50cc Sport (ESport) (Vin: TCA)
  • Part #: 633497

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