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 97.60mm Piston is 97.57mm Made in Taiwan Fits 2009 Polaris 550 Sportsman XP 2009 Polaris 550 Sportsman XP EPS 2010 Polaris 550 Sportsman EPS 2010 Polaris 550 Sportsman Touring EPS 2010 Polaris 550 Sportsman XP 2010 Polaris 550 Sportsman X2 2011 Polaris 550 Sportsman 2011 Polaris 550 Sportsman EPS 2011 Polaris 550 Sportsman Forest 2011 Polaris 550 Sportsman Touring EPS 2011 Polaris 550 Sportsman X2 2012 Polaris 550 Sportsman 2012 Polaris 550 Sportsman EPS 2012 Polaris 550 Sportsman Forest 2012 Polaris 550 Sportsman Touring EPS 2012 Polaris 550 Sportsman X2 2013 Polaris 550 Sportsman 2013 Polaris 550 Sportsman EPS 2013 Polaris 550 Sportsman Forest 2013 Polaris 550 Sportsman Touring EPS 2013 Polaris 550 Sportsman X2 2013 Polaris 550 Sportsman XP HD 2014 Polaris 550 Sportsman EPS 2014 Polaris 550 Sportsman Forest 2014 Polaris 550 Sportsman Touring EPS 2014 Polaris 550 Sportsman X2 EPS 2014 Polaris 550 Sportsman X2 EPS LE 2014 Polaris 550 Sportsman XP EPS