Manufactured by Namura Kit includes piston, rings, pin, clips you get exactly what is pictured Cast piston has super-high silicone content for additional strength Piston skirts are Molybdenium Teflon coated to minimize resistance/wear and provide extended life Piston dome is anodized for superior heat resistance and longer lifespan Kit is for standard bore size 83.00mm Piston is 82.95mm 9.2 1 Standard compression ratio Made in Taiwan Fits 1995 Yamaha Wolverine 350 4x4 YFM350FX 1996 Yamaha Wolverine 350 4x4 YFM350FX 1997 Yamaha Wolverine 350 4x4 YFM350FX 1998 Yamaha Wolverine 350 4x4 YFM350FX 1999 Yamaha Wolverine 350 4x4 YFM350FX 2000 Yamaha Wolverine 350 4x4 YFM350FX 2001 Yamaha Wolverine 350 4x4 YFM350FX 2002 Yamaha Wolverine 350 4x4 YFM350FX 2003 Yamaha Wolverine 350 4x4 YFM350FX 2004 Yamaha Wolverine 350 4x4 YFM350FX 2005 Yamaha Wolverine 350 4x4 YFM350FX 2006 Yamaha Wolverine 350 2x4 YFM350X 2007 Yamaha Wolverine 350 2x4 YFM350X 2008 Yamaha Wolverine 350 2x4 YFM350X 2009 Yamaha Wolverine 350 2x4 YFM350X