Namura Technologies NA-50083K3 Top End Repair Kit - Standard Bore (+2.00in.) 81.95mm

Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kit. MOS2 (Teflon/Molybdenum) Coated Skirts A rolled on application process provides a bond that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures. Machined Smooth Heads Reflects combustion heat and reduces carbon buildup, protecting the top of the piston. Some tests have shown this feature can increase horsepower and fuel economy by up to 6%. Anodized Domes Increases heat resistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistons. Hypereutectic Casting Process Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures.

Vehicle Fitment:

2010 Polaris Ranger 6x6 800
2010 Polaris Ranger 800 Crew
2010 Polaris Ranger 800 Crew EPS
2010 Polaris Ranger 800 HD
2010 Polaris Ranger 800 XP
2010 Polaris Ranger 800 XP EPS
2010 Polaris Ranger RZR 4 800 Gordon Edition
2009 Polaris Ranger RZR 800 S
2005-2010 Polaris Sportsman 800 EFI
2009-2010 Polaris Sportsman 800 EFI 6x6 Big Boss
2008-2009 Polaris Sportsman 800 EFI HO
2008-2009 Polaris Sportsman 800 EFI Touring
2007-2009 Polaris Sportsman 800 EFI X2