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.

• Engineered, forged, and machined in the USA in Mentor, OH
• Designed and built for each specific 4-stroke powersports engine
• Improved tensile strength of forged material optimizes strength and service life
• Dedicated forgings allow for optimized strength-to-weight ratio
• Includes high-quality piston rings, wrist pin(s), and circlips

YFM400 Big Bear 2x4
2001
2002
2003
2004
2000
YFM400 Big Bear 4x4
2000
2001
2002
2003
2004
2005
2006
YFM400F Kodiak 4x4
1993
1994
1995
1996
1997
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1999