Hold On

On my 83S, the sender for the dash temp gauge is located on the water bridge. Does anyone know the size and pitch of that senders threads?


I would like to exchange a new sender from my digital gauge. New sender is 1/8th NPT. Could not find this using search. Thanks, Kevin

Ed Scherer

I believe it's M14×1.5 (at least it was on my '90, and I don't think the size has changed over the MYs, although the sender changed from 928.606.201.01 to 928.606.201.03 in '89; the water bridge didn't change in that year, though, so... tapped hole size must be the same ).

Temp II sender (the other, smaller hole) appears to be M12×1.5.

I got these from measuring (with a digital caliper) a couple of bolts that I used when I was temporarily plugging those holes a few months ago; the silver bolt is the M14, the black one is the M12:





BTW, it sounds like you might be interested in this:





...or this: (there seem to be plenty of these kinds of adapters available; this happens to be available at O'Reilly Auto Parts for about $8)

Equus 9843 Adapter Kit






Just out of curiosity: does the replacement sender you're considering have a long enough probe/tip that it'll reach the coolant when using an adapter like the above?