Piston Kit + Cylinder for Engine 50cc GY6 4-stroke

This piston kit and cylinder are suitable for engines 50cc 4-stroke.

Included:
- 1 cylinder,
- 1 piston,
- 1 wrist pin,
- Rings kit

Dimensions:
- Cylinder diameter: 39mm,
- Piston Head diameter: 39mm,
- Piston Head height: 31.5mm,
- Wrist Pin diameter: 13mm

Engine type GY6 model 139QMB