Manche757 Posted May 10, 2019 Share Posted May 10, 2019 I am looking for the plenum box that holds the heater core and the ac evaporator for an 89 MJ, 4.0. I also need the dash board control that has ac and the cable that connects it to the plenum. Link to comment Share on other sites More sharing options...
johnj92131 Posted May 11, 2019 Share Posted May 11, 2019 "Think" any 1996 and earlier Cherokee XJ will give you the cable controls you want. The XJ may also be the easiest source for a plenum box that works and fits the space. Understand there are some slight differences between XJ and MJ units. But a good XJ unit is better than no MJ unit, right? Link to comment Share on other sites More sharing options...
Manche757 Posted May 11, 2019 Author Share Posted May 11, 2019 JohnJ, thanks for the post. I have sourced the parts on the east coast. You are more the 2700 miles away. Seal teams are in San Diego and Virginia Beach as you likely know. Link to comment Share on other sites More sharing options...
Jeepin35 Posted May 25, 2019 Share Posted May 25, 2019 If your still looking for your parts I have everything you need Link to comment Share on other sites More sharing options...
Manche757 Posted May 28, 2019 Author Share Posted May 28, 2019 On 5/25/2019 at 1:56 AM, Jeepin35 said: If your still looking for your parts I have everything you need I found the things listed above but thanks for letting me, and others, know that you have the parts needed to add factory a/c to a MJ that never had a/c. I dropped the truck off this morning to have it installed. You should list what you have in "for sale" as the parts needed to add factory a/c. A couple of other things you might want to add to your package: If there was no a/c to begin with, there are two idler pulleys. The higher one on the passenger side will be removed and replaced by the compressor. The compressor will need a mounting bracket. I do not know if the idler pulley uses the same mounting bracket or not. I bought the mounting bracket from the same CC member that I got the other parts from. I do not want to get midstream and find out that the holes don't line up. You might check to see that the blend door moves freely. Also the rubber tubing that operates the mechanism will be needed. The wiring harness will be needed also. Someone on CC wisely said he pulled the wires needed and didn't use the whole harness because after a few years in the junkyard, all the wires might not make good connection which would add confusion to the process. Putting in a/c will be happy money to spend if you live where summers are hot and humid. I had a/c replaced on a different MJ last year but since it had a/c in the beginning, the junker parts were not needed. I used all new a/c parts for everything else. I also had the heater core replaced while having the dash open. Link to comment Share on other sites More sharing options...
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