31497-65 Lock plate inner primary cover

This James Gaskets lock plate is a critical component for anyone working on the inner primary of a vintage Big Twin. It is used on the inside of the inner primary cover to secure the mounting bolts that attach the primary to the engine crankcase, preventing them from backing out under vibration. This plate is a direct replacement for OEM 31479-65 and is sold individually. It is designed specifically for 1965 to 1969 Big Twin models equipped with the original equipment aluminum primary. It is one of those small but vital parts that ensures your drivetrain stays tight and properly aligned during assembly.