1991 ecm # 56027488
 

my brother is lookn for one for his xj let me know what yall got asap thanks in advance ...probably would have to ship it ...

again the number hast be 56027488

computers
 

I got your computer now. PMd you.

Also have from different years available now. PM me your part numbers.
$50 shipped for any computer!
Dennis

Do you have this computer still?

Where do you find that 8 digit part number. I have a 1991 XJ and my ECU does not have any such number
There is a white sticker on one of the electrical components on the board that has two numbers
TDK M 2390
5234855

Those are the only identifying marks / numbers on the board, components, or case. I'm looking to get a replacement ECU for my 1991, Automatic, 50 State Leagal Cherokee Sport, 4.0L. I realize that this is an old post but I'm seeing that dropping an ECU from a 1992 automatic, 50 state legal Cherokee is the fix recommended by some people but others have tried it and their Jeep either still won't start or it runs horrible. I need to figure out what part number I have and locate the same part number. These ECU's are not all created equal. Any assistance is much appreciated.

Just curious to know if anyone found this ECU? I need one as well either a 56027488, 56027528, or a 56027598.