The PROX Engine Gasket Set for Yamaha is a comprehensive kit designed for complete engine overhauls. This set includes all the necessary gaskets and seals to rebuild your entire engine and transmission, ensuring you have everything you need for a professional-quality repair. The gaskets and seals in this set meet the quality standards of original parts, providing reliable performance and durability. However, crankshaft seals are not included in this kit and must be purchased separately.