Namura Technologies NA-50025-2K Top End Repair Kit Polaris Oversize Bore Engine Piston - for 0.5mm

The Namura Technologies NA-50025-2K is a complete top end rebuild kit designed for Polaris engines requiring a +0.5mm oversize bore. This comprehensive kit provides everything needed for a professional-quality top end restoration.

Complete Kit Includes:

• High-performance piston with advanced coatings
• Piston rings
• Wrist pin and circlips
• Top end bearing
• Complete gasket kit

Advanced Piston Technology:

• MOS2 Coated Skirts: Teflon/Molybdenum coating is rolled on using a process that creates a bond 10 times stronger than spray-on coatings, increasing heat transfer, reducing friction, and preventing cold seizures
• Machined Smooth Heads: Precision-machined crown reflects combustion heat and reduces carbon buildup while potentially increasing horsepower and fuel economy by up to 6%
• Anodized Domes: Hard anodized treatment increases heat resistance and durability, making the piston 75% stronger than non-anodized designs
• Hypereutectic Construction: Higher silicon content provides reduced expansion rates, superior wear resistance, and the ability to withstand higher cylinder temperatures

This oversize piston kit is ideal for rebuilding worn cylinders that have been bored to +0.5mm specifications, restoring compression and performance to your Polaris engine.