SteveR Posted November 17, 2020 Report Share Posted November 17, 2020 I have broken the thermostat housing mounting stud off in the head of my D42 engine. Does anyone know the thread size and how deep the hole in the head is? Quote Link to comment Share on other sites More sharing options...
Dodgeb4ya Posted November 17, 2020 Report Share Posted November 17, 2020 3/8" X 16 tpi. Is the bolt size and thread count per inch. The head thickness where the stud broke off...approximately 3/8" to 1/2" ..Below the stud is just open coolant passage area. 1 1 Quote Link to comment Share on other sites More sharing options...
SteveR Posted November 17, 2020 Author Report Share Posted November 17, 2020 Thanks Dodge. That is exactly what I needed to know Quote Link to comment Share on other sites More sharing options...
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