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 (209 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
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
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
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.