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 79.00mm Piston is 78.95mm Made in Taiwan Fits 2000 Polaris Magnum 325 4X4 2000 Polaris Magnum 325 2x4 2000 Polaris Trail Boss 325 2000 Polaris Xpedition 325 4X4 2001 Polaris Magnum 325 2x4 2001 Polaris Magnum 325 4X4 2001 Polaris Trail Boss 325 2001 Polaris Xpedition 325 4X4 2002 Polaris Magnum 325 2x4 2002 Polaris Magnum 325 4X4 2002 Polaris Trail Boss 325 2002 Polaris Xpedition 325 4X4