I'm installing a gauge pod and I want to install the water temp sender on my Upper radiator hose.
What diameter is the hose? I've looked for 20 minutes and think it's 1 1/4 inch or or 32mm.
Need to order the right attachment and they go from 28mm all the way up to 42mm.

Just want a second opinion before I order the wrong thing!

Thanks guys.
Dan