Namura Technologies NA500124K Top End Repair Kit with Coated Piston

The Namura Technologies NA500124K Top End Repair Kit provides everything needed to restore powersports engine performance in a single, convenient package. Designed for ATV, UTV, and off-road motorcycle applications, this complete top-end rebuild kit includes a piston, rings, wrist pin, wrist pin clips, top-end needle bearing, and a full gasket kit — eliminating the need to source individual components separately.

Namura pistons are engineered with several performance-enhancing features that set them apart from standard OEM replacements:

• MoS2-Coated Piston Skirts: A molybdenum disulfide (Teflon/Molybdenum) coating is applied via a roll-on process that bonds up to 10 times stronger than conventional spray-on coatings, improving heat transfer, reducing friction, and helping prevent cold seizures during startup.
• Machined Smooth Piston Crown: A precision-machined smooth head reflects combustion heat away from the piston and reduces carbon buildup. This feature has demonstrated the potential to increase horsepower and fuel economy by up to 6% in testing.
• Anodized Piston Dome: Anodizing increases heat resistance and overall durability. Pistons with anodized domes are up to 75% stronger than non-anodized counterparts.
• Hypereutectic Casting Process: Higher silicon content in the casting reduces thermal expansion rates, improves wear resistance, and allows the piston to withstand elevated cylinder temperatures — extending engine life under demanding conditions.
• OE-Spec Gasket Kit Included: The top-end gasket kit is manufactured to original equipment specifications, ensuring proper fit with no trimming or modification required.

The Namura NA500124K top-end piston kit offers a cost-effective alternative to full cylinder replacement, delivering high-performance components at a fraction of OEM pricing. It is ideal for scheduled maintenance rebuilds or repairs following engine wear or damage.