The PROX Cylinder Gasket Set for YAMAHA includes all necessary gaskets, rubber parts, and valve seals for piston rebuilds (Top End). This high-quality kit ensures a reliable and durable seal, making it an essential component for engine maintenance and repair. Designed to meet or exceed OEM standards, each gasket is crafted with precision to ensure perfect fitment and optimal performance. Engineered specifically for YAMAHA engines, this gasket set by PROX is ideal for both professional mechanics and DIY enthusiasts aiming to maintain peak engine performance.