1928 Radiator Cap

I have a super nice large, heavy cast stainless steel octagonal one that Geoff sent me, but for just going to the supermarket, I'm thinking of a cheap replacement so if it's stolen I won't totally freak. I see that 1928-1929 Model A's use a cap that I'm guessing might fit our 2-1/4 thread.

I've asked Ford shops and eBay sellers, but no one cares enough to measure them.

Does anyone know what will fit our cars???? Once I find out, then I can get gaskets that fit. Hooray!


  • GeoffGeoff Posts: 4,623Senior Contributor
    Yes, Model A Ford will screw straight on.   
    If you're stuck in a hole, stop digging.
  • CurtCurt Posts: 4Member
    the threaded caps for '28-29 Model A Fords fit both radiator and gas tank, but don't use the gas cap on the radiator, it is vented and the radiator coolant will come squirting out.
Sign In or Register to comment.