20 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 30" Ground

20 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 30" Ground

Item # A20WB

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Optronics Wiring - A20WB
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  • Trailer Connectors
  • Trailer End Connector
  • 4 Flat
  • Plug and Lead
  • Optronics
  • 20 Feet Long
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. Lowest Prices for the best wiring from Optronics. 20 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 30" Ground part number A20WB can be ordered online at etrailer.com or call 800-298-8924 for expert service.


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  • Reviews (178)
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  • Videos (2)
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  • Why etrailer?

Optronics Wiring - A20WB

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:

  • 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
    • Allows you to run wires separately down each side of the trailer to tail lights without needing a jumper wire
  • Color coded wires help with installation
    • White - ground
    • Brown - tail lights
    • Yellow - driver side stop/turn
    • Green - passenger side stop/turn


Specs:

  • Wire harness length: 20'
  • Ground wire length: 30"
  • Wire gauge: 20 AWG


A20WB Optronics 20 ft. Wishbone 4-Way Trailer Wiring Harness with 30" Ground Wire






California residents: click here


Video of 20 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 30" Ground


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Optronics Wiring - Trailer Connectors - A20WB Review

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. .


Customer Reviews

20 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 30" Ground - A20WB

Average Customer Rating:  4.9 out of 5 stars   (178 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.

- A20WB
by:

just as described, had lights in 10 minutes at half the cost of a box store 572723



- A20WB
by:

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


Comments

Just fine still working correctly

Mark v - 11/25/2015

15989

- A20WB
by:

Fantastic !!!! Great product, exactly as detailed, exactly as pictured, easy ordering, and on time shipment / arrival. I have never wired a trailer before, but after watching the online video program and following the steps I was able to complete the project in a hour for a 14' boat trailer. Prior to ordering, I did a lot of price comparisons in my area and I could not beat etrailer pricing. Great product. 155199


Comments

Thanks for the follow up - One year later the products are working spectacular and I keep plugging away at your company - telling all of my friends about it.

Martin F - 10/19/2015

15602

- A20WB
by:

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



- A20WB
by:

The product is awesome!! Works perfectly and all my future purchase will be made from etralier. 656825



- A20WB
by:

Seems to be good quality, was exactly what was listed and easy to install. 656020



- A20WB
by:

Works great. Easy to install and I used it with wire loom for added protection of the wiring. 653682



- A20WB
by:

etrailer had every thing I needed that you can't always get local thanks 652530



- A20WB
by:

Length of wire harness was exact. Perfect fit 650642



- A20WB
by:

Everything from etrailer is always as described and great prices and quick shipping! 643455



- A20WB
by:

worked well easy to use 641229



- A20WB
by:

Ashley D., a customer service representative, is an asset to etrailer. Great communication skills and very pleasant to speak with. Thank you. 636473



- A20WB
by:

All parts are high quality, always fit as they should and arrive quickly. An email from a person always preceeds and follows the parts delivery. This is why I go etrailer.com, again and again. 636228



- A20WB
by:

Fortunately I didn't need to rewire my whole trailer, but there is plenty of length for a 9 foot trailer with a 4 foot tongue. 634050



- A20WB
by:

It was nice to know I was able to find a five wire for plug. Have not installed it yet still too cold outside but I'm very happy I have looked everywhere for the certain plug and could not find it thank you for keeping a wide selection of products available. 610353



- A20WB
by:

The purchase could not have been any easier and it is exactly what I needed. 604438



- A20WB
by:

I have ordered many items from e-trailer, always prompt deliveries 603790



- A20WB
by:

Right size for my application. Very ple ased. 600028



- A20WB
by:

Great 597523



- A20WB
by:

i have had issues with some of these getting brittle from weather and sun but so far so good. 583306



- A20WB
by:

I’ve used etrailer several times in the recent past and have been 100% satisfied every time! This includes PRICE, DELIVERY and QUALITY, thanks for the service etrailer. 577958



- A20WB
by:

Works great even after a year. 572301



- A20WB
by:

Exactly what was expected 568400



- A20WB
by:

This product included all of the parts that I needed. They were packaged nicely and very easy to look at the website. The items in this order are well-made and pretty heavy duty. We love etrailer. 566972



- A20WB
by:

It is exactly what I order... Thanks 563503



- A20WB
by:

The trailer wiring harness arrived in a timely manner and was as advertised. I've installed the harness and it works great. 563291



- A20WB
by:

Exactly what I needed- matched OEM part 556292



- A20WB
by:

Worked as needed for rewiring trailer. Holding up nicely. No signs of deterioration yet. Ground wire wasn't quite long enough to reach original connection, but was no hassle to move. 554195



- A20WB
by:

Works great, 550230



- A20WB
by:

Exactly what I needed to begin rewiring a trailer. My sons cattle ate the trailer plug and pulled out the wiring in the tongue. 548253



- A20WB
by:

Rewired a small trailer, easy peasy. Fast shipping 541533



- A20WB
by:

Wire was of good quality. Easy installation. Had a situation where someone cut trailer wires in to many places so needed a complete rewire and this was a good starting base. 523016



- A20WB
by:

etrailer ships quick and is readily available for any questions or concerns. Great product 522300



- A20WB
by:

Good product 519325



- A20WB
by:

Working out great 518581



- A20WB
by:

This company is extremely helpful. Their products are quality but there is vice is even better than their products. Please patronize this company; you won’t be disappointed. 506035



- A20WB
by:

After trying to spice wires with other kits I found ETRAILER made a order got in just a couple days and had it wired hassle free this is a great product and I even order another one for my boat trailer and a easy plug kit for my jeep!! Will continue to use ETRAILER in the future!! 505718



- A20WB
by:

worked good for what I wanted 504828



- A20WB
by:

Trailer wiring got here just today so I can't really review this one. However, I have purchased the same unit before and it's really great. Just make sure you ground it properly and make good connections and it will work fine. Thanks again for a great product and rapid service. Robert 503080



- A20WB
by:

Im all thumbs and was able to totally rewire my trailer in an hour or so. No problems. I am legal again with my lights!! Thanks. 499469



- A20WB
by:

Great price and quick delivery 495936



- A20WB
by:

Product was as described with fast shipping and great information on transit time. Totally resolved my issue. 494269



- A20WB
by:

Ground wire could be a little longer but, I'm happy with it. 492760


Comments

After a year everything is still working great. Love the products purchased and if Im in the need for more trailer supplies etrailer is the place for me.

William B - 04/09/2019

52694

- A20WB
by:

Prompt shipment...good quality 491728



- A20WB
by:

GREAT 477547



- A20WB
by:

Good product 472005



- A20WB
by:

bryan knowledge of the products i needed was great shipping very fast and well packaged thank you 471945



- A20WB
by:

Easy ordering, fast delivery and professional service. Thank you 470027



- A20WB
by:

Nice wiring. 468909



- A20WB
by:

Your product was promptly delivered and functioned as expected in all aspects. 468181


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Show More Reviews

Ask the Experts about this Optronics Wiring
Do you have a question about this Wiring?


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  • 4-Way Trailer Wiring Harness has 5 Wires Coming Out of It
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  • Can 4-Pole Wiring Carry Running Light Signals for Both Sides of Trailer
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  • What Gauge Wire is Used in the Wishbone 4-Way Trailer Wiring Harness, # A20WB
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Info for this part was:

Photos Edited:
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Expert Research:
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