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 .020 over bore size 90.50mm Piston size is 90.46mm Made in Taiwan Fits 2003 Suzuki 400 Quadsport LT-Z400 2004 Suzuki 400 Quadsport LT-Z400 2005 Suzuki 400 Quadsport LT-Z400 2006 Suzuki 400 Quadsport LT-Z400 2007 Suzuki 400 Quadsport LT-Z400 2008 Suzuki 400 Quadsport LT-Z400 2009 Suzuki 400 Quadsport LT-Z400 2012 Suzuki 400 Quadsport LT-Z400 2013 Suzuki 400 Quadsport LT-Z400 2014 Suzuki 400 Quadsport LT-Z400