See more: Sprocket Hardware
Replacement seal, dealer 5-pack
A very complete kit containing a sprocket nut with incorporated seal, main drive gear key, lock plates for the main drive gear and transmission sprocket, and main drive gear oil seals. Cures transmission oil leakage caused by main drive gear bushing wear. Fits all 1936 thru 1986 4-speed Big Twin models with closed or open primary, except 1965 thru 1969 with the OEM inner primary cover. Replacement seal also available.