Wiseco forged piston kit designed for Yamaha Grizzly 350, Raptor 350, YFM350 Warrior, BW350T, YFM350 Moto 4, and Big Bear 350 models. This high-performance piston is built for extreme racing conditions, providing increased durability and resistance to impact and fatigue.

Features

• Forged construction for enhanced durability and strength


• Optimized for high-performance motorsport applications


• Superior resistance to impact and fatigue


• Designed for 4-stroke engines

Specifications

• Bore Size: 83.00 mm


• Part No.: 4419M08300


• Includes: Piston, 3268XC ring set, two CW19 circlips, one S376 wrist pin

Cross-Reference OEM Part Numbers

• Part No.: 56-W4419+00A_WI

Vehicle Fitments

• Yamaha Grizzly 350 Auto 4x4 (2008-2014)


• Yamaha Raptor 350 (2005-2013)


• Yamaha YFM350XT Warrior (1987-2004)


• Yamaha BW350T (1999)


• Yamaha YFM350 Moto 4 (1999)


• Yamaha YFM350 WT Big Bear (1989-1999)


• Yamaha YFM350X Warrior (1987-2004)


• Yamaha YFM350FX Wolverine (1995-2009)


• Yamaha YFM350R Raptor (2005-2013)


• Yamaha YFM350U Big Bear 2x4 (1996-1999)


• Yamaha YFM350FW Big Bear 4x4 (1987-1999)


• Yamaha YFM350G Grizzly (2007-2011)


• Yamaha YFM350X Wolverine 2x4 (2006-2009)