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.
Features:
Specs:
California residents: click here
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 (197 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
Order was easy and package arrived within a week. Product was as advertised. 668067
GREAT, needed something long and no spices this worked out great 677782
I have ordered many items from e-trailer, always prompt deliveries 603790
Works great, 550230
Kenneth - 08/05/2019It'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
Just rewired a cargo trailer I bought that the lights were always going out. Found 20 butt connectors the guy used no wonder they worked off & on. Now with two new tail lights & new wiring with a straight connection everything works like it should. Everything I have bought from etrailer has been good quality & fast shipping. Thanks 715875
Simple and quality wire harness set Needed to rewire a friends trailer w/ an updated set up Easy to use and install for this type of set up 162425
Mark v - 11/25/2015Good 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
Length was just right. 785375
Great instructions both written and on video, easy to install and works like a charm! 779113
Better quality than what it replaced. Plug has grips moulded in to make it easier to unplug and plug in. 776696
Product is good and as advertised 775264
The product are working great 725071
Fast and Accurate. Thanks. 722602
worked well. 698946
Wonderful product. Still working perfectly after a year of use. GREAT customer service! Thank you. 692463
The pictures and details of the part needed was excellent. 673191
I am driving safer because I can now hang brake lights on bikes on my hitch-mounted rack. Easy to do with what etrailer sent me. Super helpful on-line. 672262
Good quality harness. Looking forward to installing it. 663942
Very easy to rewire my 1970's stock trailer with these supplies and instructional videos. 663353
The product is awesome!! Works perfectly and all my future purchase will be made from etralier. 656825
Seems to be good quality, was exactly what was listed and easy to install. 656020
Do you have a question about this Wiring?
Info for this part was:
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.