NA-40004K Top End Kit 99.97/Std 11:1 Yam wps-186-4004

Description

NA-40004K Top End Kit 99.97/Std 11:1 Yam

Enhance the performance of your Yamaha engine with the NA-40004K Top End Kit, meticulously designed for efficiency and durability. This comprehensive kit brings together high-quality components that ensure your engine operates at its best.

Features:

• Complete Kit: Includes piston, rings, wrist pin, clips, top end bearing, and gasket kit for a convenient upgrade.
• MOS2 (Teflon/Molybdenum) Coated Skirts: The advanced rolled-on application process creates a bond that is 10 times stronger than traditional spray-on coatings, enhancing heat transfer and minimizing friction to prevent cold seizures.
• Machined Smooth Heads: Designed to reflect combustion heat and mitigate carbon buildup, these heads may boost horsepower and fuel economy by up to 6%.
• Anodized Domes: Offers increased heat resistance and durability, with pistons featuring anodized domes being 75% stronger than their non-anodized counterparts.
• Hypereutectic Casting Process: Incorporates higher silicon content, resulting in reduced expansion rates and enhanced wear resistance, capable of withstanding higher cylinder temperatures.

Upgrade your engine’s top end with the NA-40004K kit and experience the difference in performance and reliability. Perfect for enthusiasts looking to maximize their Yamaha’s potential!