Oil Tank Caps Stock Replacement

The very first oil tanks of Harleys with wet sump lubrication had the same gas cap as the gas tanks, with which they formed a complete part anyway. One assembly, one thread, done.

There are different versions of the oil filler caps for models with dry sump lubrication: with dipstick and thread for the Big Twins with the Horseshoe oil tank, a simple cap with bayonet lock for the 750s, a rubber cap with 1-1/4” diameter and the cap of the oil tank with integrated filter in the filler neck. Alltogether they are so different that it's impossible to confuse them. All oil tank caps are available as quality reproductions from W&W Cycles.