Namura TOP END REBUILD KIT +1.50 (74.2MM) NA-20005-6K1 fits 2005, 2007-2009 Kymco MXU 300 / 2008 Kymco MAXXER 300 / 2009-2010 Kymco Mongoose 300 / 2006 Kymco MXU 300 SD / 2010 Kymco MXU 300 Shaft Drive CAT

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