NAMURA NA-50024-2K Top End Repair Kit for Polaris, 0.020-Inch Oversize Bore

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

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 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

Restore dependable top-end performance with the NAMURA NA-50024-2K Top End Repair Kit for Polaris applications. This repair kit is designed for engines requiring an oversize bore configuration, making it a practical choice for rebuilding an engine after cylinder wear, piston damage, or other top-end service needs. The kit is supplied as a complete repair solution for the specified application and is packaged for convenient installation during an engine overhaul.
NAMURA is recognized for producing replacement engine components for powersports equipment, and this top end repair kit is built to support reliable service and consistent