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Upgrade your Yamaha YZ125 with the VERTEX Top End Piston Kit, part number VTK22806B. Designed to deliver improved durability and performance, this kit features a high-quality cast aluminum alloy piston with 18% silicone content, ensuring strength and resistance to wear. The piston is heat treated through a T-5 hardening and tempering process, providing better fatigue resistance and longevity. Its gravity-cast construction offers a reliable, OE replacement option that maintains original specifications for optimal fit and function. The piston skirt is coated with a high-tech molybdenum disulphide layer, which facilitates faster break-in and extends the piston’s service life by reducing friction and wear during initial operation. This comprehensive top end kit includes all necessary components such as piston rings, wrist pin, circlips, top end gaskets, and wrist pin bearing, making it a complete solution for rebuilding or upgrading your engine's top end.
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