headlight wiring harness replacement - JeepForum.com
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post #1 of 6 Old 03-22-2015, 08:42 AM Thread Starter
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1989 YJ Wrangler 
Join Date: Dec 2012
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Posts: 73
headlight wiring harness replacement

Quick question guys, need to replace headlight wiring harness. I have the replacement and noticed the connection to the firewall has black , I'm assuming, water proofing material. Do I been to clean the terminals on both male and female ends prior to installation. Hit me back when you get time

Thanks Jeff ,

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post #2 of 6 Old 03-23-2015, 04:36 PM
Web Wheeler
1989 YJ Wrangler 
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No, it is grease. All the electrical connectors should be filled with grease to keep water out. The connectors are water resistant not water proof.
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post #3 of 6 Old 03-28-2015, 04:39 AM Thread Starter
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sweet, thanks bud
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post #4 of 6 Old 03-28-2015, 10:14 AM
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Are you doing the relay mod, or just replacing the harness?

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post #5 of 6 Old 03-28-2015, 01:01 PM
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to clarify, it isn't regular GREASE.... nor is it vaseline ... it is DIELECTRIC grease... probably silicone ish.....but not sure.....
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post #6 of 6 Old 04-06-2015, 12:15 PM
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1991 YJ Wrangler 
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Do yourself a favor. Do the relay mod to save some headache. It's really easy! Relay pack and harness is not expensive at all. Did mine plus upgraded the lens' to H4 hella. I can now see at night!!


1991 Jeep Wrangler YJ, <-- My Jeep is a pickpocket!!
1984 Mustang GT Top 5-Speed <-- Running soon hopefully
2003 Honda Shadow Spirit 750, 1994 Suzuki Katana 600, 1980 Yamaha XS650 <-- Ripped apart and under the knife .. Chopped, bobbed & mono shocked. I got too many toy$$$!!!
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