Piston Kit - Standard Bore 93.02mm, 10.6:1 Compression For 2011 Polaris Ranger RZR XP 900 Utility Vehicle 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 seizuresMachined 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 re_sistance and durability; pistons with anodized domes are 75% stronger than non-anodized pistonsHypereutectic Casting Process - Provides higher silicon content for reduced expansion rates and additional wear re_sistance; it also has an ability to withstand higher cylinder temperatures *Bore Diameter: 93.00mm ^ Compression: 10.6:1 Compression ^ Sizing: 0.02mm OversizeSold Each - Order Quantity Appropriate For Your Machine.
