Maybe. The basic engine will be compatible - will bolt up to the transmission, etc. I don't know if all the electronics will be compatible though. To be safe, use the electronics that are already in the vehicle, including the engine wiring harness.
The other sticky problem is the tone ring, mounted on the crankshaft inside the engine, which triggers the crankshaft position sensor. Older engines used a 16 tooth ring, newer engines use a 32 tooth ring. They switched over in 2002 or 2003 depending on the model. Yours is a 2004, so it should work with any 2004 or newer model.
I think that tone ring deal was a V8 thing not a V6 thing.... if there was a difference it would be 12 or 24 teeth.... divide 6 into 16 or 32 and it doesn't come out even.
never heard of it being an issue on the V6s, most don't want anything to do w/a V6 when they can have a V8....
The tone ring for the 3.7L V6 looks very much like that for the 4.7L V8.
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