Description
Final Drive Gear for CSC Scooters and 139QMB Engines
This final drive gear is designed for CSC scooters including the go, go MAX models, and Pug50, as well as any bikes equipped with 139QMB engines. It ensures proper power transfer from the engine to the wheels, maintaining reliable performance. As one of the significant GY6 50cc scooter parts, it offers a dependable solution for your scooter maintenance needs.
19-Spline Design
The final drive gear features a 19-spline design, ensuring a secure fit with compatible components. This design allows for efficient power transmission and smooth operation. It is important to replace this part if you notice any issues with acceleration or overall performance.
Compatibility and Fitment
This part is compatible with various engine models, facilitating straightforward installation on suitable scooters. It is important to verify that your engine code contains "QM" or "FM" for compatibility.
Specifications
- Number of Splines: 19
- Inner Diameter (spline peak to peak): 18mm
- Thickness: 15.7mm
Fitment
This final drive gear fits the following vehicles and engines:
- CSC scooters including go and go MAX
- Pug50
- Engines: 139QMB, 139QMA, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD, and other QMA/QMB models
Not sure it fits? Contact us with your scooter's make, model and year and we'll confirm the fit before you order.
Shop more: GY6 50cc Scooter Parts (139QMB) · GY6 Scooter Parts · Scooter Transmission & Final Drive · Scooter Parts
Customer Reviews
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.