Discussion in 'Frequently Asked Questions' started by Michael L MORRIS, Jun 1, 2020.
Will a 96 Dodge Dakota engine 3.9 fit into a 2003 Jeep Liberty that has a 3.7
Welcome to the forums.
Even if it does fit? Everything else would be different electrically, different connectors, different modules, PCM, BCM TCM etc etc..
You would be best to find another engine from a 2003 KJ if at all possible, or re-build yours.
Every year with KJ's it seems they added or changed features, from one model year to another.
You can get newer KJ 3.7 engines to fit into your 2003 KJ but there are some things such as the Tone Ring that needs to be moved across.
There is a very good write-up on this site as regards fitting a newer 3.7 KJ engine into an early KJ body.
Fitting any other engine would be a major problem as LibertyTC stated...all the electrical modules and most of the wire harnesses would need to be replaced!
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