Namura OEM Style Piston Kit .060 NA-50000-6 fits 1987 Polaris Cyclone 250x / 1985-1986 Scrambler 250 / 1990-2006 Trail Blazer 250 / 1985-1988 Trail Boss 250r / 1987-1993 Trail Boss 250 4X4 / 1988-1993 Trail Boss 250 2X4

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 resistance 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 resistance; it also has an ability to withstand higher cylinder temperatures