You are purchasing one USA made reproduction rubber tank divider strip for 1936 to 1938 Knucklehead, UL, WL, & Servicar split fat bob fuel tanks.  This is 6" long and will need a final trim to get it just right.  We also sell the 1939-1984 filler strip as well as rubber tank buffers for JD, VL, Knucklehead, and WL models.

This fills the unsightly tank gap beneath the dash cover on the tanks.  We also sell the rubber dash trim strips as well as a whole array of reproduction Eaton gas caps including nickel plated 1936-1941 short knurl style, fuel and oil tank mounting hardware kits, highly-detailed premium wiring kits for early Knuckles with the correctly looped and soldered terminals, ammeters and oil pressure signals hard to find restoration quality hardware, shift gates, premium European sheet metal, and great NOS and used OEM parts.  

If you can't find what you need for your early Knuckle or flathead here or cimarroncycleworks, just email and ask.

These look identical to NOS ones I had years back, I've included measurements for you to decide if these are accurate enough for your needs.

Used on the following models, please cross-check your own reference material to make sure this is right for you: