SKU:180421
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
The Namura NX-40085K Top End Repair Kit provides the essential components needed to restore top-end performance in compatible engines. Designed as a convenient replacement kit, it supports reliable engine service and helps simplify the repair process by grouping key top-end parts together.
Built for powersports maintenance and engine rebuilding, this Namura repair kit is designed to meet the demands of routine service and performance-focused repairs. The 47.44 mm application size makes it important to verify engine compatibility and specifications before installation. Use the NX-40085K when replacing worn or damaged top-end components and returning the engine to dependable operating condition.
Namura is recognized for producing replacement engine components for motorcycles, ATVs, and other powersports applications. The NX-40085K Top End Repair Kit is supplied as a kit and is intended for professional installation or use by experienced technicians. Always follow the engine manufacturer’s service procedures, confirm fitment, and replace related gaskets, seals, or hardware as required for the specific application.
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