This is a complete engine Oil Seal Kit!  This is for the vintage 1970's Honda CB550-4 (CB 550 Four CB 550/4) Motorcycle. This oil seal set is for the 1974, 1975, 1976, 1977 and 1978 models including the Super Sport models. This 9pc Seal kit has all the seals needed for your engine. Just replace the ones that are leaking now...or if you are restoring your engine this is the perfect and essential kit (along with a gasket set) to get your engine all sealed up nicely for years of riding!