Manufactured by Namura HyperDryve Series piston Kit includes piston, rings, pin, clips you get exactly what is pictured The HyperDryve line of pistons is composed of a space-age hypereutectic aluminum alloy developed by NASA. Engineered to maintain its high tensile strength up to 700 F 370 C , 50% higher than a conventional cast piston, this gives HyperDryve pistons the strength to perform under operating conditions normally reserved for forged pistons. 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 102.00mm Size A piston is 101.97mm Made in Taiwan Fits 2007 Yamaha Grizzly 700 4x4 YFM700FG 2008 Yamaha Grizzly 700 4x4 YFM700FG 2009 Yamaha Grizzly 700 4x4 YFM700FG 2010 Yamaha Grizzly 700 4x4 YFM700FG 2011 Yamaha Grizzly 700 4x4 YFM700FG 2012 Yamaha Grizzly 700 4x4 YFM700FG 2013 Yamaha Grizzly 700 4x4 YFM700FG