Arrives before Christmas 
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No need to wrestle with jumper wires when wiring your trailer lights! The wishbone design of this Optronics 4-Way Trailer Wiring Harness allows you to run separate wires to each taillight. With both brown wires included, wiring up the lights on each side of your trailer becomes a straightforward and streamlined process. It's perfect for DIY enthusiasts who want a cleaner, simpler wiring solution.
Whether you’ve got traditional bulb lights or upgraded LED lights on your trailer, this 20-ft Wishbone 4-Way Wiring Harness has you covered. The versatile harness is compatible with various light types, ensuring efficient power delivery and easy integration, so you spend less time adjusting wiring and more time on the road.
Say goodbye to grounding issues. The harness includes a straightforward and robust 30-inch ground wire, ensuring a reliable connection that keeps your trailer lights working smoothly. This feature provides a secure and consistent grounding solution, reducing the likelihood of frustrating electrical faults.
The color-coded wire setup, with white for ground, brown for tail lights, yellow for left stop/turn, and green for right stop/turn, promotes a hassle-free installation experience. This intuitive color scheme eliminates guesswork and simplifies the process for trailer owners, whether they’re first-timers or seasoned pros.
With a generous 20-foot length, this wiring harness caters to a wide array of trailer sizes, from compact utility trailers to larger setups. Its adaptability ensures you have plenty of wire length for routing without the frustration of coming up short, accommodating most trailer configurations with ease.
Rest easy knowing your lights will stay lit thanks to the high-quality copper wiring used in this harness. Copper is renowned for its excellent conductivity and durability, providing a reliable connection that stands the test of time and environmental elements, keeping your trailer lights bright and functional.
California residents: click here
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello everybody. This is Jeff at etrailer.com. Today we're gonna take a look at this Optronics 20 foot long Wishbone 4-Way Trailer Wiring Harness. Now this 4-way trailer wiring harness will install on your trailer and connects to your tow vehicle to control your trailer light functions. This one we call a wishbone-style harness 'cause it's designed to have two brown taillight wires, one for each side of the trailer, that'll split for simple wiring of your trailer. This will allow you to run wires separately down each side of the trailer to your taillights without needing a jumper wire.
If you notice the ground wire on this with the eyelid on it, is the white wire that has 30 inch length to it. We mentioned the total wire harness length is 20 feet, and the wires are color coded, so that'll help with installation. We mentioned the white is your ground. The brown, there's two of 'em, one for each side, those are your tail lights, and then you'll notice the brown right here. If we do the brown and the yellow side, that's for your driver's-side stop and turn, and this one here is the brown and the green wire, which is your passenger-side stop and turn.
So you just run those down each side, driver's side and passenger side, and you don't have to run a jumper wire in between. But that should do it for the review on the Optronics 20 foot long Wishbone 4-Way Trailer Wiring Harness.
Everything that was needed !
Easy to handle and adjust to trailer design.
Thank you
Good description of product. Fast shipping.
fast shipping, great product, just what I needed
Right on the money and lightening fast delivery.
Nice produce decent price. I bought two, and which I bought a third for a spare.
Wire strands are separate entire length. Fitting is molded precisely and fits together snugly enough you know it will not come out.
Product as described. Amazingly fast shipping. Ordered Monday morning received Tuesday morning. This was with the cheapest shipping option too! They definitely have all my business for any of my trailer needs.
Outstanding quality product with terrific service. I was very satisfied with the whole process. This is a much better product than the cheap junk you find at a big box (if you can find it). I couldn't find anything in the stores with the ground wire built in. All were just four-wire connectors.
This wiring setup was a direct replacement for the wiring of my 8x4 utility trailer (10 year old "Kit" trailer from Harbor Freight tools) . The product was received within 3 business days of ordering. etrailer customer service was very helpful and ensured that I ordered the correct wiring setup and the product worked perfectly! Thanks
MJV
Pennsylvania
Ground wire really needs to be longer; I ended up splicing it so it would reach the body of the trailer. I suppose you could mount it closer to the coupler but that would entail drilling a new hole which I didn't want to do.
Just what I needed for my home-built bike carrier. My wife rides an e-tricycle and by the time I loaded the trike and a couple of bikes on this platform, you could not see the car's taillights or blinkers. This harness worked perfectly!
Used this to rewire a 6 x 10 trailer. Inserted the wire through 3 feet of metal conduit to keep it from being damaged near the coupling. So now the only exposed wire is the ¼ inch right at the connector.
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.
Works good, seem to be of good quality.
Exactly what I was looking for. Only place I could find an exact match.
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!!
Just best best way to wire up my trailer and others.
Higher quality than most
Good product, even though it's fairly simple a picture with directions for which wires go where would be helpful!
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
Some men, when they arrive at sixty five or above, run out and buy a fancy red sports car. I bought an old trailer that looked good and sturdy. It was very inexpensive. It needed some welding and rewiring. Luckily I have a neighbor who is an excellent welder, and the wiring was easy to find on the web and easy to install. I have gotten great pleasure using my trailer. I even thought about painting it red, but then that would look ridiculous.
Jonathan
5/26/2022
Very good. Product has held up nicely
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.
Martin F.
10/19/2015
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.
Just wanted to let you know that the Optronics Miro-Flex Trailer Lights are working great!! Much brighter and more visible that the basic lights I replaced! Hope your business is doing well through this Covid crisis!! Thanks for the communication.
Michael I.
4/24/2022
Outstanding
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Rod
1/8/2013
But the specs told you 30 inch ground. How can you give a bad review because you cant read?????