Namura Technologies NA-50011-2K Top End Repair Kit - 0.50mm Oversize to 97.07mm

Bore: 97.07mm
Sizing: 0.50mm Oversize

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:

2012-2013 Polaris Sportsman 550
2010-2011 Polaris Sportsman 550 EFI
2010-2011 Polaris Sportsman 550 EFI Touring w/ EPS
2010-2011 Polaris Sportsman 550 EFI w/ EPS
2009 Polaris Sportsman 550 EFI XP
2009 Polaris Sportsman 550 EFI XP w/ EPS
2012-2014 Polaris Sportsman 550 EPS
2011-2014 Polaris Sportsman 550 EPS Browning LE
2012 Polaris Sportsman 550 EPS Orange Madness LE
2013 Polaris Sportsman 550 EPS Stealth Black LE
2012-2014 Polaris Sportsman 550 Touring EPS
2010-2013 Polaris Sportsman 550 X2
2014 Polaris Sportsman 550 X2 EPS