NAMURA NX-10003-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

The NAMURA NX-10003-BK Top End Repair Kit provides a practical replacement solution for servicing the upper portion of a compatible engine. Designed for powersports maintenance and repair applications, this kit helps support top-end restoration when existing components have reached the end of their service life or require replacement during routine engine work. Its kit format simplifies the parts selection process and helps keep related service items organized for a single repair project.
The NAMURA top end repair kit is intended for use by professional technicians, experienced mechanics, and powersports enthusiasts who need dependable replacement parts for engine maintenance. It can be used as part of a broader rebuild or repair procedure, depending on the condition of the engine and the manufacturer’s service requirements. Before installation, confirm that the application, engine configuration, and service specifications match the requirements for NAMURA part number NX-10003-BK.
For best results, inspect all related top-end components before assembly and follow the engine manufacturer’s recommended procedures for disassembly, cleaning, torque settings, break-in, and final inspection. Proper installation is essential for reliable operation and long service life. The NAMURA NX-10003-BK is supplied as a kit and is intended to help streamline compatible top-end repair work without replacing the need for application-specific verification or professional installation when required.

Features:

• Top-end repair kit designed to support compatible powersports engine service and restoration

• NAMURA replacement component set for upper-engine maintenance applications

• Kit format helps organize related service items for an efficient repair process

• Part number NX-10003-BK supports accurate application matching and ordering

• Suitable for professional technicians, experienced mechanics, and qualified DIY repair projects