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 80.00mm Size B piston is 79.96mm Made in Taiwan Fits non-HO Polaris 800 models 2005 Polaris Sportsman 800 4x4 EFI 2006 Polaris Sportsman 800 4x4 EFI 2007 Polaris Sportsman 800 4x4 EFI 2007 Polaris Sportsman 800 X2 EFI 2008 Polaris RZR 800 EFI 2008 Polaris Sportsman 800 Touring EFI 2008 Polaris Sportsman 800 X2 EFI 2009 Polaris RZR 800 EFI 2009 Polaris Sportsman 800 6x6 EFI 2009 Polaris Sportsman 800 Touring EFI 2009 Polaris Sportsman 800 X2 EFI 2010 Polaris Ranger 800 4x4 EFI 2010 Polaris Ranger 800 4x4 EFI Crew 2010 Polaris Ranger 800 6x6 EFI 2010 Polaris RZR 800 EFI 2010 Polaris RZR 800 S EFI 2010 Polaris Sportsman 800 4x4 EFI 2010 Polaris Sportsman 800 6x6 EFI 2011 Polaris Ranger 800 4x4 EFI 2011 Polaris Ranger 800 4x4 EFI Crew 2011 Polaris Ranger 800 6x6 EFI 2011 Polaris Sportsman 800 4x4 EFI 2011 Polaris Sportsman 800 6x6 EFI 2012 Polaris Ranger 800 4x4 EFI Crew 2012 Polaris Ranger 800 6x6 EFI 2012 Polaris Ranger 800 XP 2012 Polaris Sportsman 800 4x4 EFI 2012 Polaris Sportsman 800 6x6 EFI 2012 Polaris Sportsman 800 Forest 4x4 EFI 2012 Polaris Sportsman 800 Forest 6x6 EFI 2013 Polaris Ranger 800 4x4 EFI 2013 Polaris Ranger 800 4x4 EFI Crew 2013 Polaris Ranger 800 4x4 EFI Midsize 2013 Polaris Ranger 800 6x6 EFI 2013 Polaris Sportsman 800 4x4 EFI 2013 Polaris Sportsman 800 6x6 EFI 2013 Polaris Sportsman 800 Forest 4x4 EFI 2013 Polaris Sportsman 800 Forest 6x6 EFI 2014 Polaris Ranger 800 4x4 EFI 2014 Polaris Ranger 800 4x4 EFI Crew 2014 Polaris Ranger 800 4x4 EFI Midsize 2014 Polaris Ranger 800 6x6 EFI 2014 Polaris Sportsman 800 4x4 EFI 2014 Polaris Sportsman 800 6x6 EFI 2014 Polaris Sportsman 800 Forest 4x4 EFI 2014 Polaris Sportsman 800 Forest 6x6 EFI *** 2 Pistons are required for these machines ***