Restore your bike’s power and performance with this high-quality 40mm piston & ring kit designed for Yamaha PW50, PY50, Peewee 50, and compatible 50cc dirt bikes. Whether you're doing a routine top-end rebuild or replacing a worn-out piston, this kit includes all the essential components needed to get your engine running smoothly again.
The aluminum alloy piston is lightweight yet durable, while the piston rings ensure a tight seal for proper compression. Designed to match OEM specifications, this kit is compatible with stock 40mm cylinders and is a great choice for DIY mechanics, pit bike enthusiasts, and backyard rebuilders.
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🛠️ Complete 40mm Piston Kit — Includes piston, rings, wrist pin, and circlips
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✅ OEM Replacement for Yamaha PW50 / PY50 — Perfect for top-end rebuilds
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🔧 Durable Alloy Construction — Provides high compression and long-lasting reliability
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🧩 Precise Machining — Ensures exact fit in stock 40mm cylinder bores
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🏍️ Ideal for Maintenance or Performance Restoration — Restore lost power and engine performance
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