Need some fittings

[HzEmall]

I have a oil cooler with a 18 x 1.5 female fitting on it. I have a 3/8" male pipe fitting for a Autometer Mechanical temp sender and I need to mate them together.



Oh, and the 18x1.5 plug has a o ring on it.

I found a male 18x 1.5 to -6 or -8 male end, but can't find a female -6 or -8 to 3/8 fitting.

Ideally one that will screw right into the cooler and then allow me to put my pipe fitting would be nice............

It's a strange cooler, the in and out are AN ends (or pipe....I didn't put the ends on) then on the other side is this metric fitting with a o ring on it.

I have one for oil cooler and one for tranny cooler............got a tranny temp and oil temp sender to put in each one.

I looked in my Earls, Russel and Aeroquip catalogs and didn't find anything other then the above mentioned fitting.