Namura Technologies NA50012BK Top End Repair Kit with Coated Piston - MOS2

The Namura Technologies NA50012BK Top End Repair Kit delivers everything needed for a complete top-end engine rebuild in a single, convenient package. Kit includes: piston, rings, wrist pin, circlips, top-end bearing, and a full gasket kit — so you have all the critical components to restore your engine to like-new condition without hunting down individual parts.

Key Features:

• MOS2 (Molybdenum/Teflon) Coated Skirts — Applied via a rolled-on process that bonds 10x stronger than spray-on coatings, providing increased heat transfer, reduced friction, and protection against cold seizures.
• Machined Smooth Piston Heads — Reflect combustion heat away from the piston crown and reduce carbon buildup. Testing has shown this design can improve horsepower and fuel economy by up to 6%.
• Anodized Dome — Boosts heat resistance and overall durability; anodized domes are up to 75% stronger than non-anodized alternatives.
• Hypereutectic Casting Process — Higher silicon content reduces thermal expansion rates, adds wear resistance, and allows the piston to withstand elevated cylinder temperatures.
• OEM-Quality Rings — Rings are manufactured by Riken, the world's largest OEM ring supplier, ensuring precise fitment and long-lasting seal integrity.
• OEM-Spec Gasket Set — Includes head, base, and all necessary gaskets, O-rings, and seals required to complete the rebuild with no trimming or fitment modifications needed.

Namura pistons are precision-machined to exact OEM specifications and are direct-fit replacements requiring no dimensional adjustments. Whether rebuilding after wear or recovering from engine damage, the NA50012BK top-end kit provides performance-grade components at an accessible price point.