SKU:181950
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
The NAMURA NX-40011-8K Complete Top End Rebuild Kit is designed specifically for Yamaha engines, providing all essential components for a thorough top end overhaul. This comprehensive kit includes high-quality parts engineered to restore engine performance and reliability. Ideal for enthusiasts and professional mechanics, this rebuild kit ensures precise fitment and durability for Yamaha models requiring a +2.00mm (57.98mm) bore upgrade. The kit features components crafted to meet or exceed OEM standards, delivering optimal compression and power output.
This rebuild kit contains all necessary parts for a complete top-end restoration, simplifying the process and reducing the need for additional sourcing. The components are engineered to withstand high-performance conditions, making them suitable for racing or high-mileage applications. Easy to install, the kit is an excellent choice for those looking to enhance engine efficiency and longevity. Proper installation and use of this kit can significantly extend the lifespan of your Yamaha engine, ensuring smooth operation and improved performance.
Designed with precision engineering and quality materials, the NAMURA top end rebuild kit guarantees a reliable rebuild solution. Whether you're performing routine maintenance or restoring a high-performance engine, this kit offers the perfect combination of value and quality. Trust NAMURA for durable, reliable engine components that meet the demands of your Yamaha motorcycle or ATV.
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