Description
47mm Piston Kit for GY6 50cc Engines
This 47mm piston kit is designed for 50cc QMB139 4-stroke engines. It includes all necessary components for a complete replacement, including the piston, rings, piston pin, and circlips. This part is one of the GY6 50cc scooter parts typically swapped out during engine maintenance or performance upgrades. It ensures proper engine function and longevity when properly installed.
Component Overview
The kit features a piston with an outer diameter of 47mm and a total height of 34.4mm. Its compression height measures 17.25mm, while the wrist pin diameter is 13mm and the wrist pin length is 36.8mm. These dimensions are important for achieving the correct fit and performance in your engine.
Installation Considerations
Replacing the piston in your GY6 50cc engine is a straightforward process for those familiar with scooter repairs. Ensure that all components are compatible and that you have the necessary tools to perform the installation. A new piston is often needed when the engine shows signs of wear, such as reduced compression or unusual noises.
Specifications
- Size: 47mm outer diameter
- Total Height: 34.4mm
- Compression Height: 17.25mm
- Wrist Pin Diameter: 13mm
- Wrist Pin Length: 36.8mm
- Includes: Piston, Pin, Rings, Circlips
Fitment
This piston kit is specifically designed for use in GY6 50cc engines, particularly the QMB139 model.
- QMB139 50cc
- QMB139 49cc
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 Pistons & Piston Rings · Scooter Parts
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