Manufactured by Namura Kit includes piston, rings, pin, clips, top end gasket kit 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 Namura gaskets use performance materials to increase durability and provide greater reliability Includes all gaskets pictured to rebuild top end Kit is for .040 over bore size 40.00mm Piston is 39.98mm Made in Taiwan Fits 2007 Polaris Predator 50 2008 Polaris Outlaw 50 2009 Polaris Outlaw 50 2010 Polaris Outlaw 50 2011 Polaris Outlaw 50 2012 Polaris Outlaw 50 2013 Polaris Outlaw 50 2014 Polaris Outlaw 50 2015 Polaris Outlaw 50 2016 Polaris Outlaw 50