Changed my water temp sending unit and still nothing on the gauge.

I am not showing that to be a coorect part when I look for a 1972 Duster with a V8 on Oreilly's website. These are the options I show.

http://www.oreillyauto.com/site/c/s...h&model=Duster&vi=1231973&keyword=temperature


Advance does show it as a direct fit.

I don't know what that all is, and some of us have discussed that earlier. I think O'Reallys is AFU. Note those are listed as "universal" and some are obviously the wrong size thread.

The part he posted, WT-127, if you check the compatibility chart fits about 90% of the Mopars on the planet, going back to 64 in some cases.