Namura Technologies NA-10020-4K Top End Rebuild Kit - 66.47mm - Oversized 1.00

Top End kit includes: piston, rings, wrist pin, clips, top end bearing, and gasket kit.
MOS2 (made with Teflon™/Molybdenum) Coated Skirts A rolled on application process provides a fits Bond™ that is 10 times stronger than other spray on coatings. Benefits include increased heat transfer, reduced friction and helping to eliminate cold seizures.
Machined 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 pistons.
Hypereutectic Casting Process Provides higher silicon content for reduced expansion rates and additional wear resistance; it also has an ability to withstand higher cylinder temperatures.

This item fits H-D the following vehicle applications:
fits HON ATC200 1981-1983
fits HON ATC200E 1982-1983
fits HON ATC200ES 1984
fits HON ATC200M 1984-1985
fits HON ATC200S 1984-1986
fits HON ATC200X 1983-1986
fits HON TRX200 1984
fits HON TRX200D FourTrax Type II 1991-1997
fits HON TRX200SX 1986-1988