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on rock auto there is a 35 mm thermostat housing and a 40mm, which one is correct?


stamina

Well-Known Member
Joined
Nov 20, 2021
Messages
227
City
Wilmington, NC
Vehicle Year
1990
Engine
4.0 V6
Transmission
Manual
Total Lift
4” suspension
Tire Size
265/75/r16
My credo
built her in a storage unit
the engine i have is a 1995 4.0 ohv, ad theres tw options? which one is the right one? or is bigger just better?
 
Autozone sells both also. You will just have to measure yours I guess. 35mm is about 1 3/16 inches. 40mm is about 1 37/64 inches
 
Autozone sells both also. You will just have to measure yours I guess. 35mm is about 1 3/16 inches. 40mm is about 1 37/64 inches

Yeah... what he said.
FYI, they’re taking about the hose end, not the thermostat end.
 

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