So my nephew just bought a 99 cherokee sport but the engine is blown, my question is can he use a engine from any 99 or below? Someone is telling him that he has to get one from a 99 only because the motor mounts and everything is different for that year. I havent got to personally see the jeep yet. If someone could please chime in I would greatly appreciate it thanks.

 

I think the motor mounts are different form 00 up
and 96 down
but idk about the 97 or 98 motor mounts

im guessing he has the 4.0?

 

Yea he has the I6 engine, I was thinking a 98 and 99 are the same but maybe Im wrong, I know the 96 and up have the obII and the 00-01 are distributorless.

 

You can basically swap in any 4.0L, 91 and newer is preferable cause they are the HO versions (ie heads). The only things that significantly changed where the boss's for the motor mounts and accessories. The accessories can just be swapped over because they have similar mounting points. I'm not sure on how exactly the motor mounts differ but i believe the break is the 96-97 model change era. Cams also changed in 91 for HO and 2000 for smog reasons which shouldnt affect you in KY. 2000+ have coil packs so theres no hole for the dizzy and in 96 the block was revised with more webbing to reduce harshness.

Thats about the extent to my wealth of knowledge lol

If I was you, look for 96-99 from any jeep.

 

Thanks alot guys.