My husband purchased a 1993 Jeep for a parts vehicle for my 1999 Jeep Cherokee Sport. This morning I was told by some co-workers that neither the motor or transmission would work. Just wondering if this is true. My 99 has a 4.0 inline 6. I am not sure if the 93 is a cherokee sport or a pioneer an don't know any information on the motor. Just wondering if you might know if parts will interchange.

Some small items and body parts may interchange and the differentials probably will also. Where you may have trouble is with the cylinder head (can interchange only if modified) and with any electrical items as even if they look alike, the plug connectors are different. Transfer cases may be the same but some have a different spline count on the input (also requires modification) When buying a parts vehicle, check wit a local scrapyard to see if the actual parts you intend to use are interchangeable (they have books....it's their business to know that). In your case, you're probably better off getting one a bit newer.

While some of the components will be the same there will be quite a few others that are different due to changes in technology and designs during the 6 years between the two. I do believe that both have the AW4 transmission and if they are both 4.0l engines then several of the engine components should be the same. The biggest differences tend to be in the electronic controls, sensors, body parts, and control systems.