NAMURA Complete Top End Rebuild Kit for Yamaha 55.98mm - Part Number NX-40011K

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-40011K complete top end rebuild kit is designed specifically for Yamaha engines with a bore size of 55.98mm, offering a reliable solution for engine refurbishment. This comprehensive kit includes all the essential components needed to restore your engine's top end performance, ensuring optimal power and efficiency. Crafted with high-quality materials, the NAMURA rebuild kit guarantees durability and precise fitment, making it an ideal choice for professional mechanics and DIY enthusiasts alike.
Each kit is meticulously assembled to meet OEM standards, providing peace of mind during installation and operation. Whether you're performing routine maintenance or rebuilding after an engine overhaul, this kit simplifies the process by including everything required for a complete top end refresh. The components are engineered to withstand the rigors of high-performance operation, helping extend the lifespan of your engine.
Trust NAMURA’s reputation for quality and precision engineering to deliver a top end rebuild solution that enhances your Yamaha motorcycle’s performance and reliability. Easy to install and designed for compatibility with Yamaha models featuring a 55.98mm bore, this kit is essential for maintaining peak engine condition and ensuring smooth, powerful operation.

Features:

• Complete top end rebuild kit designed for Yamaha engines

• Includes all necessary components for a full top end refurbishment

• High-quality materials for durability and long-lasting performance

• Precision engineering to meet OEM specifications

• Compatible with Yamaha models with a 55.98mm bore