Triumph Pre-Unit Twins (Rigid) Gearbox Oil Filler Cap (1) - 57-0400

New Triumph pre-unit twins gearbox cover oil fill cap. This cap comes with a smooth "dome" top along with a polished alloy finish. Imported from England to replace Triumph part numbers 57-0400, 57-400, T0400 & T400

Fits most Triumph pre-unit twins before 1951 with the proper gearbox as found on Triumph twins with rigid frames. Please check your parts book to ensure the best fitment.