Description
47mm Piston Kit for GY6 50cc Models
This replacement piston kit is designed for the QMB139 4-stroke engine with a 47mm bore. It includes all necessary components: a piston, rings, a piston pin, and circlips. It is one of the key GY6 50cc scooter parts that ensure proper sealing of the combustion chamber, preventing issues like oil consumption and low compression. Proper matching of the piston diameter and pin size to your cylinder is important for effective performance.
When to Replace It
Replace the piston kit when you notice symptoms like excessive smoke or increased oil consumption, which may indicate worn rings. Maintaining proper compression is important for engine efficiency, making timely replacement necessary for reliable performance.
Specifications
- Piston Diameter: 47mm
- Wrist Pin Diameter: 13mm
- Total Piston Height: 34.1mm
Fitment
This piston kit is compatible with QMB139 50cc and 49cc engines.
- Various makes/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 Pistons & Piston Rings · Scooter Parts
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