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The Wiseco team has remained at the forefront of powersports performance through every era and evolution, including the development of high-performance 4-strokes. Today, Wiseco's forged 4-stroke pistons are designed for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength. Proven at every level of riding, Wiseco 4-stroke pistons are ready to deliver the power and reliability you're looking for.
- Complete Package: Each piston includes a wrist pin, rings, and circlips, providing everything needed for installation
- Forged Material: Optimizes strength and service life, ensuring durability under high-stress conditions
- Performance-Enhancing Features: Varied across applications to maximize both durability and power
- Improved tensile strength of forged material optimizes strength and service life
- Designed and built for each specific 4-stroke powersports engine
- Dedicated forgings allow for optimized strength-to-weight ratio
- Includes high-quality piston rings, wrist pin(s), and circlips
- Engineered, forged, and machined in the USA in Mentor, OH
- 72.00 mm Bore, 8.7:1 CR
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1992-1998 | Yamaha | YFB250 Timberwolf 2x4 | Base |
| 1994-2000 | Yamaha | YFB250FW Timberwolf 4x4 | Base |
| 2000-2004 | Yamaha | YFM250 Bear Tracker | Base |
| 2007-2009 | Yamaha | YFM250 Big Bear | Base |
| 2005-2006 | Yamaha | YFM250 Bruin | Base |