The PROX Cylinder Gasket Set for YAMAHA includes all necessary gaskets, rubber parts, and valve seals required for the piston rebuild (Top End). The set is crafted from top-quality materials to ensure durability and optimum performance. Whether you are performing a routine maintenance or a major overhaul, this gasket set provides all the parts you need for a hassle-free rebuild. It ensures a perfect fit and superior sealing capabilities to keep your engine running smoothly. Suitable for various YAMAHA models, this comprehensive gasket set is designed to meet or exceed OEM specifications, guaranteeing reliable performance and longevity.