This is a 6 pcs engine Oil Seal Kit for the  XS400's models made in 1977 1978 1979 1980 1981 1982 1983 1984. This is for SOHC (Single Over Head Cam) models and the DOHC models too. Maxim and Seca etc. This is an essential item if you are restoring, riding or racing one of these now vintage bikes.  Stop those pesky oil leaks. This has your crank case seals, clutch pushrod seal, kickstart seal, shift-shaft seal and tachometer seal! Replace them all if you are rebuilding your engine or just replace the ones that are the problem/ leaking seal.