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Thermostat housing difference

Bondo

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Was wondering the difference in the thermo housing through the years of the 4.0. I have a 2000 XLT with a slight coolant leak at the housing, but all the ones I find online say they don't fit. Don't see why the one from my 2006 would be different, but I don't know.

Any info as to what style a 2000 4.0 Ranger calls for? Trying not to run to the parts store a bunch of times returning the wrong parts, or worse buying the wrong one online and getting nothing fixed for days
 


RonD

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1990-2000 Rangers used the 4.0l OHV engines
2001-2011 Rangers used the 4.0l SOHC engines
So different engines and different parts

4.0l OHV used a metal thermostat housing bolted to the front of the lower intake, just above water pump, follow the upper radiator hose, it clamps to that housing

4.0l SOHC used a plastic thermostat housing on the top side of the engine toward the front under upper intake
 

Bondo

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Ok that makes sense, that's for the info.

Guess I will look for the metal housing
 

holyford86

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Ok that makes sense, that's for the info.

Guess I will look for the metal housing
To build on the info provided, there are two different outlet diameters depending on year, they're different enough you can easily tell with a tape measure.
 

Bondo

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