In Need of Thread Sizes

CMac89

Registered User
I am needing to know what the thread sizes are for the ECT sensor, on the intake, and for the gauge fitting in the thermostat housing.

I think they are both 3/8" NPT, but I'm not sure.
 
The ECT fitting is 3/8" (just replaced mine).

I believe the stock gauge fitting in the t-stat is 1/4". At least mine is.
 
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