Dodge Dart gas cap.

Hi,

In struggle over finding a gas cap for my car I ran across one online that fits a 1.375 inch fuel neck. I mean, this measurement was written in the description of the gas cap. I had to go out and measure my fuel neck. It is 1.338 inch. So, that cap will not fit. The cap I have is 1.338 too, so it is possible to push it in, and then it is stuck there. But, no rubber seal or anything, the cap does sit because it is tight to push in. And equally tight to get out.

The 1.338 inch is measured inside the neck. In other words, it is how large the round part of the gas cap can be as a maximum, but preferably a bit smaller. Maybe 1.3 would be a better fit.

Does anyone have any measurements for the fuel necks and caps ?

I have looked at caps for GM and Ford, and Ford has a cap that is 1 7/8 inch so that is way over what the Dart needs.

I know some make them, but I was looking for a lockable cap, and that is a bit more struggle.

Stant list a cap for 1967 and up to 1971, Stant 10572, but I don't know how big the neck is for the 1967 Dart.


Bill