Swapping 2000 mountaineer 5.0 in a 2002 explorer xlt

[Kaleb Duren]

I have a 2002 explorer that has a bad transmission and is leaking oil from the 4.0 probably just a seal but I have a wrecked 2000 mountaineer with a 5.0 and good transmission and I need to get the explorer going. I know this involves changing almost everything from one too the other including exhaust Ac and radiator but what I need to know is if everything will fit and motor will mount the same before i start the process also if the parts I will need will exceed just buying the new transmission and seal for the explorer

 

[974X4BLACKSPORT]

Personally I would fix what is in there before going full FRANKENSTIEN.

 

[imp]

@Kaleb Duren

That bad trans would make a good boat anchor in that big 'ole river up there by Jeff City! Seriously, to change to a different engine/transmission is pretty complicated. imp

 

[Mbrooks420]

Since you are a 4 door, and different generations this would be a fairly involved swap. You’d probably be ahead of the game buying a tired, but rust free 99-01 second genV8, or a later 4.6.

 

[410Fortune]

2001 was the last year of the 5.0 and it was in a Gen II explorer

Your 2002 is a Gen III explorer, it s a whole different animal
Putting a 2001 engine into a 2002 is not emissions legal
That wrecked 5.0 you haveif it is lower miles is quite desirable these days and worth some good $$$$$
However I would NOT try to put the 302 drivetrain into a Gen III truck no way jose.
You are better off fixing your current V6 and/or put that 5.0 into a worthy Gen II truck

 

[CDW6212R]

Ditto, the trucks are way different and that swap would be very tough and complicated, plus cost more than finding the right 3rd gen engine and trans.