So my water/coolant temp gauge came in. However.. I forgot to order the adapter. Does anyone know what size it is?

1", 1 3/6", or 1 3/8"?

thanks

 

I'm doin the same and trying to find the best place for it. I've seen it in the T-Stat but that's a whack of work is it really necessary?

https://www.rx7club.com/3rd-gen-archives-73/water-temperature-sensor-how-tap-install-247152/

 

https://www.rx7club.com/showthread.p...ator+hose+size

 

^^ What he said ...

Also when you go to buy the adapter, DON'T get it from a "name brand" vendor, I got mine on ebay for <$10 shipped and it is the EXACT same product with a different picture card slipped into the packaging. Most of the other places I was coming across them wanted $30, a couple even $40, I was glad I double checked with the fleabay before pulling the trigger.