Namura, NA-50090-B, Size B Piston Kit 2011-2014 Polaris RZR 900 Standard Bore 93mm

Bore: 93.00mmCompression: 10.6:1 CompressionSizing: 0.01mm OversizeMOS2 (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.This item fits the following vehicle applications:compatible with Polaris Ranger RZR XP 4 900 2012-2013compatible with Polaris Ranger RZR XP 4 900 EPS LE 2012-2013compatible with Polaris Ranger RZR XP 900 2011-2013compatible with Polaris Ranger RZR XP 900 EPS LE 2013compatible with Polaris Ranger RZR XP 900 LE 2011-2013

• MOS2 (Teflon/Molybdenum) Coated Skirts - A rolled on application process provides a bond that is 10 times stronger than other spray on coatings.