Description
When your Yamaha engine demands reliability under peak combustion temperatures, OEM-equivalent pistons become non-negotiable. The PARTS UNLIMITED +.040 Piston Assembly delivers the precise heat transfer and durability you need for consistent performance, whether you’re rebuilding after wear or upgrading to tighter tolerances. Cast from high-grade material and engineered to factory specifications, this assembly arrives complete with rings, wrist pins, and circlips—ready for installation.
- Cast piston construction
- OEM-equivalent design
- +.040 oversized bore
- Optimized heat transfer
- Includes replacement rings
- Wrist pins included
- Circlips included
- Yamaha fitment specific
- One piston assembly
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