Namura Technologies NA50081K Top End Repair Kit Standard Bore - 79.95mm

The Namura Technologies NA50081K Top End Repair Kit delivers everything needed to restore your engine's top end to factory-fresh condition in a single, convenient package. Engineered for a standard bore of 79.95mm, this kit is built to exacting tolerances using premium materials to ensure long-lasting performance and reliable operation after every rebuild.

Namura pistons are manufactured using a hypereutectic casting process, which provides higher silicon content for reduced thermal expansion rates and improved wear resistance, allowing the engine to withstand higher cylinder temperatures. Piston skirts feature MoS2 (Teflon/Molybdenum) coated skirts applied via a rolled-on process that bonds 10 times stronger than spray-on coatings, reducing friction, improving heat transfer, and helping eliminate cold seizures. Machined smooth piston heads reflect combustion heat and reduce carbon buildup to protect the crown, with some applications showing gains of up to 6% in horsepower and fuel economy.

Kit Includes:

• Piston (79.95mm standard bore)
• Piston rings
• Wrist pin
• Wrist pin bearings
• Circlip retaining clips
• Top-end gasket kit

The included gasket kit ensures a proper, leak-free seal during reassembly — a critical component of any successful top-end rebuild. Namura Technologies top-end repair kits are a trusted choice for ATV, UTV, and powersports engine rebuilds, offering OEM-grade quality at an aftermarket value.