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 2007 Yamaha Grizzly 350 2x4 YFM350G 2007 Yamaha Grizzly 350 4x4 Auto YFM350FG 2007 Yamaha Grizzly 350 4x4 Auto IRS YFM350FGI 2008 Yamaha Grizzly 350 2x4 YFM350G 2008 Yamaha Grizzly 350 4x4 Auto YFM350FG 2008 Yamaha Grizzly 350 4x4 Auto IRS YFM350FGI 2009 Yamaha Grizzly 350 2x4 YFM350G 2009 Yamaha Grizzly 350 4x4 Auto YFM350FG 2009 Yamaha Grizzly 350 4x4 Auto IRS YFM350FGI 2010 Yamaha Grizzly 350 2x4 YFM350G 2010 Yamaha Grizzly 350 4x4 Auto YFM350FG 2010 Yamaha Grizzly 350 4x4 Auto IRS YFM350FGI 2011 Yamaha Grizzly 350 2x4 YFM350G 2011 Yamaha Grizzly 350 4x4 Auto YFM350FG 2011 Yamaha Grizzly 350 4x4 Auto IRS YFM350FGI 2012 Yamaha Grizzly 350 4x4 Auto YFM350FG 2013 Yamaha Grizzly 350 4x4 Auto YFM350FG 2014 Yamaha Grizzly 350 4x4 YFM350D