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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.
- 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
- 100.50 mm Bore, 11:1 CR
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2002-2008 | Yamaha | YFM660F Grizzly 4x4 | Base |
| 2001-2005 | Yamaha | YFM660R Raptor | Base |
| 2004-2007 | Yamaha | YXR66F Rhino 660 | Base |
| 2007 | Yamaha | YXR66F Rhino 660 Ducks Unlimited | Base |
| 2006-2007 | Yamaha | YXR66F Rhino 660 Exploring Edition | Base |
| 2006-2007 | Yamaha | YXR66F Rhino 660 Special Edition | Base |
| 2007 | Yamaha | YXR66F Rhino 660 Sport Edition | Base |