YJ dash & harness to CJ7 engine harness?

adamag25 · 03-09-2009, 10:37 AM

I searched the threads an could not find anything that covers this topic if it is out there please link to it. I am trying to use the YJ dash in the YJ body tub that I recently put on a CJ7. The dash, wires, and fuse block are from a 87 YJ 4.2L and the plug that goes to the harness/fuse block on the engine side of the firewall are from the 83 CJ7 4.2L. The mounting and attachments all seem to be the same but I am not sure if the wires all connect to the same places. I would like to keep as many functions working as possible (lights, turn signals, engine) Does anyone have a diagram of the connector for each year and model. If anyone knows if the harness can be plugged in without modifications and without issue that would save me a lot of time and thinking. I was going through the wire diagrams and started making a chart but it could take forever to go that way so if anyone can help with the shortcut it would be greatly appreciated. Thanks in advance.

adamag25 · 03-10-2009, 08:59 AM

Ok I found the answer to my own question and it is NO. The YJ harness is not a direct plug in to the CJ harness. The pins on the YJ are like this - and the CJ are like this | so they do not fit well or at all. Plan B is to take the CJ Dash harness and fit it into the YJ dash. So has anyone done this yet? I removed both harnesses and carefully labeled everything so getting the fit right should not be too bad and should only take a splice or two. If anyone has tried this and been successful or failed please let me know and Thanks in advance for your help.

John Roberts · 09-25-2009, 02:32 AM

I am glad you found the answer to your own question bro. Indeed you are right..The YJ harness is not a direct plug in to the CJ harness.

_____________
John Robs
jeep wrangler parts are durable!

03-09-2009, 10:37 AM	#1
adamag25 Jeeper Join Date: Nov 2008 Location: NJ Posts: 24	YJ dash & harness to CJ7 engine harness? I searched the threads an could not find anything that covers this topic if it is out there please link to it. I am trying to use the YJ dash in the YJ body tub that I recently put on a CJ7. The dash, wires, and fuse block are from a 87 YJ 4.2L and the plug that goes to the harness/fuse block on the engine side of the firewall are from the 83 CJ7 4.2L. The mounting and attachments all seem to be the same but I am not sure if the wires all connect to the same places. I would like to keep as many functions working as possible (lights, turn signals, engine) Does anyone have a diagram of the connector for each year and model. If anyone knows if the harness can be plugged in without modifications and without issue that would save me a lot of time and thinking. I was going through the wire diagrams and started making a chart but it could take forever to go that way so if anyone can help with the shortcut it would be greatly appreciated. Thanks in advance.

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03-10-2009, 08:59 AM	#2
adamag25 Jeeper Join Date: Nov 2008 Location: NJ Posts: 24	Ok I found the answer to my own question and it is NO. The YJ harness is not a direct plug in to the CJ harness. The pins on the YJ are like this - and the CJ are like this \| so they do not fit well or at all. Plan B is to take the CJ Dash harness and fit it into the YJ dash. So has anyone done this yet? I removed both harnesses and carefully labeled everything so getting the fit right should not be too bad and should only take a splice or two. If anyone has tried this and been successful or failed please let me know and Thanks in advance for your help.

09-25-2009, 02:32 AM	#3
John Roberts Newb Join Date: Sep 2009 Posts: 2	I am glad you found the answer to your own question bro. Indeed you are right..The YJ harness is not a direct plug in to the CJ harness. _____________ John Robs jeep wrangler parts are durable!