Namura Top End Repair Kit .040 NA-10007-4K fits 2000-2003 Honda RANCHER 350 TRX350TM 2X4 S / 2000-2006 Honda RANCHER 350 TRX350FE 4X4 ES, RANCHER 350 TRX350FM 4X4 S, RANCHER 350 TRX350TE 2X4 ES / 2004-2006 Honda RANCHER 350 TRX350TM 2X4

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