Join Date: Apr 2006
Location: Milford, MI
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Re: t - stat # from auto value ??
Basically there are very few actual Manufacturers of Thermostats in North America:
Stant (aka Standard-Thomson, NAPA and MANY others) They make the HEMI Thermostats.
Cooper-Standard (aka Robertshaw, Prestone)
Behr Thermot-tronik , my employer (OE for GM and Ford, no Aftermarket except German Cars)
Nippon (OE GM and Toyota)
MotoRad (only Aftermarket)
Auto Value is either Stant or MotoRad, I believe.
Be aware that quality levels of aftermarket Thermostats vary widely, the Stant / NAPA Superstats are pretty good (overbuilt) and the Prestone / Robertshaw line has a "Premium" part as well.