NAMURA NX-20000-BK Top End Repair Kit

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 upper-engine service with the NAMURA NX-20000-BK Top End Repair Kit. Designed for powersports repair and maintenance applications, this kit provides a convenient solution for servicing the top end of a compatible engine without sourcing related replacement components individually. NAMURA is recognized for supplying replacement engine parts for motorcycles, ATVs, and other off-road vehicles, making this repair kit a practical choice for professional technicians and experienced powersports enthusiasts.

The NX-20000-BK is supplied as a complete kit package, helping streamline the repair process and support an organized installation. A top end repair is commonly performed when an engine requires renewal of components in the cylinder and piston area due to wear, reduced compression, operating-hour maintenance, or routine engine rebuilding. Before ordering or installation, verify the application, engine model, and manufacturer service requirements to ensure this kit is appropriate for the intended vehicle.

Built for service-focused repairs, the NAMURA Top End Repair Kit can help support consistent engine operation when installed with the correct procedures and compatible parts. Follow the vehicle manufacturer’s service manual for disassembly, inspection, torque specifications, clearances, break-in recommendations, and fluid requirements. Inspect related engine components before assembly, and replace any worn or damaged parts that could affect fit, sealing, lubrication, or performance. Professional installation is recommended when specialized measuring tools or engine-building experience is required.

Choose the NAMURA NX-20000-BK when you need a clearly identified top end repair kit for a compatible powersports engine. Its kit format simplifies parts planning and helps keep the necessary repair materials organized during an engine service. Confirm