4-Way trailer harness connects to your tow vehicle to control trailer light functions. Wishbone-style harness comes with 2 tail light wires split for simple wiring.
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Specs:
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Today we'll be reviewing part number A20WB. This is Optronics 20 foot wishbone 4-way trailer wiring harness with a 30 inch ground. It's going to feature a 4-way flat connector. Wires come straight from that and they immediately split all the way to the very end. Again, you're going to have 20 feet in total length. Then you're going to have that 30 inch ground wire.
This harness will work as an exact replacement for truck light number 108820. That's going to do it for our review of part number A20WB. This is Optronics 20 foot wishbone 4-way trailer wiring harness. .
Average Customer Rating: 4.9 out of 5 stars (217 Customer Reviews)
4-Way trailer harness connects to your tow vehicle to control trailer light functions. Wishbone-style harness comes with 2 tail light wires split for simple wiring.Perfect for the 10 foot long trailers I build. Really like the 30 inch ground lead. 735529
It's a simple item but try to find it somewhere else as a stand alone product. I've used etrailer before with great results and this was no exception. Let's be honest, if you've been to the site once, you're coming back! I have a 5 x 12 utility trailer that has good lights but the wiring was a disaster. The harness connector had been patched and there were at least 5 splices throughout the lines. It was nice to lay out the new harness, make the light connections, tack everything up and out of harms way (there's an idea) and my lights work like new. I like the ground fastens under the jack bolt. Saves drilling a screw in (see the baby hole?) Good to feel safe on the road again. As easy and inexpensive as it was, I don't know why I waited so long. 539599
As advertised 936585
934725
I’m happy to have found this. It will be more efficient. 919776
works great first time re wiring a trai ler 916958
911463
Comes with two brown leads making it dead simple to install. Just lay it all out and install it. Seems to be of good quality too. Nice wire gauge. 907097
speedy service and delivery, great telephone reps, and great product! LED lights work great and easy to install. Highly recommended 906245
Excellent service,it was here before I realized it!great job! 903128
As promised and good install instructio ns. 867281
Always efficient - easy ordering proces s! 860803
Good quality easy to install very satis fied. 854881
the service was fast and correct will be installing the harness tomorrow and it was as described Thank you for your service 853438
On my trailer 852499
Have used this harness several times. 848930
Rewired the trailer relatively easily. Had a ground problem that was easily fixed. My only problem was the VERY long shipping. There is no excuse. 848598
Perfect 848011
Great transaction as usual with Etrailer. Shipping and communication is great each and every time. 830361
Great lights and excellent wiring. Went on my trailer very easily. 820605
I haven't used it yet but it looks to be of great quality. fast shiping 815191
This is more of a review for etrailer.com than the product; although the wiring harness worked perfectly. The service etrailer.com provided was excellent from start to finish. I highly recommend them! 814435
Good quality replacement for my trailer. 797728
Took me less than two hours to rewire my trailer. Would have been sooner if I didn't have trouble removing the old wiring. The quality of the wire was better than expected. 796269
Used as spare wire for a hitch project. Good stranded wire. 792425
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