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 standard bore size 78.50mm Piston is 78.45mm Made in Taiwan Fits 2003 Polaris Magnum 330 2x4 2003 Polaris Magnum 330 2x4 HDS 2003 Polaris Magnum 330 4x4 2003 Polaris Magnum 330 4x4 HDS 2003 Polaris Trail Boss 330 2004 Polaris ATP 330 4x4 2004 Polaris Magnum 330 2x4 2004 Polaris Magnum 330 4x4 2004 Polaris Trail Boss 330 2005 Polaris ATP 330 4x4 2005 Polaris Magnum 330 2x4 2005 Polaris Magnum 330 4x4 2005 Polaris Trail Boss 330 2006 Polaris Magnum 330 4x4 2006 Polaris Trail Boss 330 2007 Polaris Trail Boss 330 2008 Polaris Trail Boss 330 2009 Polaris Trail Blazer 330 2009 Polaris Trail Boss 330 2010 Polaris Trail Blazer 330 2010 Polaris Trail Boss 330 2011 Polaris Trail Blazer 330 2011 Polaris Trail Boss 330 2012 Polaris Trail Blazer 330 2012 Polaris Trail Boss 330 2013 Polaris Trail Blazer 330 2013 Polaris Trail Boss 330