I have a couple firewall-forward wiring harnesses; there are actually 4 sub harnesses that make up the front end of an XJ;

HARD TO FIND, as 97 is only good on 97; not sure if 98 is the same as anything newer. but when I was troubleshooting my 97, I had too many JYs to remember tell me that they do not sell harnesses; they "cut" everything when thee pull battery; CUT; starter? CUT alternator? Yup. Engine? Yup they cut every wire they have to upon removal.

1) I have the main harness, incl the fusebox (may be missing a fuse or relay here or there) from a late-1996 produced '97 XJ; 4.0 AW4, 242 T case; no factory foglights.
I installed this on my 97 and everything worked fine; but since i found my problem this was the harness that was in place when I figured out my electrical problem. EVERYTHING WORKED FINE. Only flaw is missing the plug for the electric radiator fan... otherwise totally complete and functional.

2) same as #1 above except it is for a 98; The school of hard knocks tells me that 97 and 98 ARE NOT the same. They are EXCEPT for the soplenoid plug going to the tranny and the plug going to the TCM....
2 more wires and larger connector than the 97; the TCM plug is also different (TCM on these is under the dash; I also have the 98 TCM will sell together or by itself). 2+hour ride each way to a junkyard that said their interchange said '97=98. NOT TRUE! I removed myself not a single wire was cut. This '98 XJ was 4.0, 231, AW4.
i did have it all fished in and hooked up (except that one transmission connector) and my Jeep ran and started fine, all sensors did respond to scanner. (meaning that as far as I can tell it is a good harness!)
3) From the 98, front end lighting harnness. This plugs into the main near the ECM under the airbox. All there no cuts that I see.

4) engine wiring harness (injectors sensors etc) from the 98; good shape all there. Plugs in that big black connector at firewall to main harness.
This one also feeds from speed sensor, T case, rear O2, etc underneath.

5) also from the 98; wire harness going to alternator, starter, includes the battery cables>connects to main harness via gray plug under cruise servo Nothing cut here either I removed from JY Jeep myself

6( "Parts" harness) '97 Engine harness wiring shredded; all plugs there are in good shape, wiring was melted together where it laid across intake, came apart like candy "twizzlers" wiring insulation melted together and "ripped" as I seperated them from each other; all pigtails intact and accounted for; I can cut individual pigtails or you can have the whole harness cheaply.

If you have fire damage, or crash damage here is your wiring!