Namura TOP END REPAIR KIT NA-30051-BK fits 1998-2002 Arctic CAT 500 4X4 / 1998-2002 Suzuki QuadRunner 500 LTF500F 4X4 / 2000-2002 Arctic CAT 500 4X4 Automatic / 2002 Arctic CAT 500 4X4 Automatic EFI, 500 4X4 EFI, 500 4X4 Tbx Automatic

Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kitMOS2 (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