NAMURA NX-10081K Top End Repair Kit, 1.87-Inch 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 top-end performance with the NAMURA NX-10081K Top End Repair Kit. Designed for applications using an approximately 1.87-inch bore, this repair kit provides a convenient solution for refreshing worn or serviceable top-end components. NAMURA is recognized for producing replacement engine components intended to support dependable maintenance and repair work in powersports applications.
The NX-10081K is supplied as a complete kit, helping streamline the repair process by grouping the required top-end service components under one part number. A kit-based approach can simplify ordering, reduce the need to source individual pieces separately, and help keep a rebuild organized from teardown through final assembly. It is suitable for professional technicians, repair facilities, and experienced powersports enthusiasts performing scheduled maintenance or top-end service.
Before ordering or installation, verify compatibility with the specific vehicle, engine configuration, model year, and existing cylinder or piston specifications. Confirm that the approximately 1.87-inch bore application matches the engine manufacturer’s service requirements, and inspect related components for wear or damage during disassembly. Follow the vehicle service manual for cleaning, measurement, torque procedures, break-in requirements, and final inspection. The NAMURA NX-10081K Top End Repair Kit is a practical replacement choice for maintaining engine performance and supporting a properly completed top-end repair.

Features:

• Brand: NAMURA

• Part Number: NX-10081K

• Product Type: Top end repair kit

• Application: Designed for engines using an approximately 1.87-inch bore

• Package Type: Supplied as a kit for convenient top-end service

• Service Use: Suitable for engine maintenance, repair, and rebuild applications