Cylinder Head Piston Ring Bore Rebuild Kit for YAMAHA PW50 PY50 PEEWEE 50 Dirt Bike

Engine Top-End Rebuild Kit for Yamaha PW50 / PY50 / Peewee 50cc
This complete top-end rebuild kit includes everything you need to restore compression and performance in your PW50 or PY50 engine. Ideal for worn, seized, or low-power engines.

📦 Package Includes：

• 1 × Cylinder Head

• 1 × Cylinder Barrel (Bore)

• 1 × 40mm Piston

• 2 × Piston Rings

• 1 × Piston Pin

• 2 × Circlips

• 1 × Base Gasket

• 1 × Head Gasket

✅ Features：

• Direct OEM-style replacement parts

• High-quality aluminum alloy with precision machining

• 40mm piston size – standard bore

• Compatible with stock engine configuration

• Great for full top-end rebuild or performance refresh

Specification
Diameter of piston around 40mm
Height of piston around 50.21mm
Length of piston pin around 33.08mm
Diameter of piston pin around 9.99mm