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 .040 over bore size 53.00mm Piston is 52.96mm Made in Taiwan Fits 2001 Polaris Scrambler 90 2001 Polaris Sportsman 90 2002 Polaris Scrambler 90 2002 Polaris Scrambler 90X 2002 Polaris Sportsman 90 2003 Polaris Predator 90 2003 Polaris Scrambler 90 2003 Polaris Sportsman 90 2004 Polaris Predator 90 2004 Polaris Sportsman 90 2005 Polaris Predator 90 2005 Polaris Sportsman 90 2006 Polaris Predator 90 2006 Polaris Sportsman 90