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Upgrade your Yamaha engine with the WSM Piston Kit, designed for precision and durability. This kit features a piston with a 66.50 mm diameter, crafted to meet or exceed OEM standards for quality and construction. The pistons are coated with a nonabrasive, expansion-retarding MoS2 (Molybdenum Disulfide) layer that effectively reduces heat and friction, resulting in improved power output and enhanced longevity of your engine. The MoS2 coating actively draws heat away from the piston walls and channels it out through the bottom, helping maintain optimal operating temperatures during demanding use.
The piston tops are specially hardened to add strength to the ring grooves, ensuring durability under high-stress conditions. Additionally, this kit includes features like an improved E-clip design for secure and reliable assembly, simplifying installation and maintenance. This piston kit is an essential upgrade for enthusiasts aiming for reliable performance and extended engine life. Order one per cylinder to ensure optimal fit and function in your Yamaha-powered machine.
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