Wiseco Yamaha YFM660 Raptor 9.91 CR (4966M10100) Piston Kit - PK1433

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.

Features

• Wiseco 4 Stroke Forged Series Piston Kit, 101.00 mm Bore, 9.9:1 CR
• Yam YFM660 Raptor 9.9:1 CR (4966M10100)

Manufacturer's Limited 30 Day Warranty