Namura NX-70050-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 the upper-engine serviceability of your compatible powersports vehicle with the Namura NX-70050-BK Top End Repair Kit. Designed for top-end repair and rebuild applications, this kit provides a convenient replacement solution for maintenance professionals, powersports technicians, and experienced enthusiasts who need dependable components for an engine refresh. The Namura brand is recognized for producing replacement engine parts intended to support reliable service and consistent performance.
Use the NX-70050-BK kit when servicing the top end of an engine and replacing worn or serviceable components during a scheduled rebuild. A top-end repair can help address compression-related concerns, restore proper engine operation, and prepare an engine for continued use when installed with the appropriate supporting parts. Always compare the part number, vehicle application, engine specifications, and manufacturer service information before beginning installation to confirm compatibility.
The Namura Top End Repair Kit is supplied as a dedicated repair kit under part number NX-70050-BK. Its kit format helps simplify the parts-selection process by providing a purpose-built option for a top-end service rather than requiring each replacement component to be sourced separately. For best results, inspect the cylinder, cylinder head, crankshaft, and related components before assembly, and replace any damaged or out-of-specification parts as required. Follow the applicable torque specifications, clearances, break-in procedures, and installation instructions for the engine being serviced.
Built for practical engine maintenance, the Namura NX-70050-BK is a suitable choice for repair shops and vehicle owners completing a compatible top-end rebuild. Confirm the exact kit contents and application with the manufacturer or an authorized parts reference before ordering, as included components and