Gasbox Oil Tank – Bolt-On For 1965-Up Harley-Davidson Four Speed Swingarm Frames

This Oil Tank is designed to fit 1965 and later Harley Davidson four speed Big Twin swing arm frames. These tanks are designed to bolt into your stock frame using our mounting brackets. The rear bracket clamps to the frame and the front bracket replaces to clutch cable mount. You will need to cut off left side stock oil tank tab, if it isn’t broken off already (ha!). You will need to make a modification to the front of the rear fender as it will hit the oil tank bracketed. If you are using a 1980’s era frame, the integrated clutch cable front oil tank mount will need to be eliminated and an earlier style mount will have to be adapted.

This tank is designed for a YTZ-14S battery, or one of similar size. This is the smallest electric start battery available other than Lithium Ion batteries (antigravity). The tank will also require the purchase of 1/8″ npt fittings of your choosing for the oil lines. Completely TIG welded and hand formed in Cleveland, Ohio.