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4 Pin Male trailer wiring Extension kit with 18 AWG Color Coded Wiring Wishbone Style Harness
PURE COPPER WIRES FOR GOOD CONDUCTIVITY
Allows to run wires separately down each side of the trailer to tail lights without needing a jumper wire.
Robert bean
Reviewed in the United States on May 3, 2025
The Oyviny 4 Pin 5 Wire Trailer Wiring Harness is a solid choice for rewiring a trailer. The 50-foot length provides plenty of flexibility, and the pure copper wiring ensures reliable conductivity. The nylon net tube protection adds durability, making it resistant to wear and tear. Installation is straightforward, thanks to the wishbone design that simplifies connecting both taillights. Overall, it’s a well-made harness that delivers dependable performance for trailer lighting
RichOahu
Reviewed in the United States on March 7, 2025
Have an older trailer. These worked just as they should have. Would recommend
Laurie Mouton
Reviewed in the United States on March 4, 2025
Nothing fancy but it does have a nich synthetic wrap to keep the wires safe when launching boat in the grass. Hides up nicely rather than colored wires all over the trailer.
twofouroh
Reviewed in the United States on March 10, 2025
Most important thing first - It's copper wire, not CCA. Way too many wiring products from China are CCA calling itself "100% copper" these days - I just got through with a 0-star review of another trailer harness that was CCA. The wire is 16GA, which should be fine for a trailer with LED lights. The connections are stout, with good plastic and tough copper pins and barrels. The braid is tough and it will definitely help stop abrasion. It is held on by heatshrink at both ends.The only negative is that the ground ring terminal is just crimped on under the heatshrink. If you are going to use the ring, you should peel back the heatshrink and solder the wire to the ring crimp.It's great, I love it!
Lisa
Reviewed in the United States on March 10, 2025
We needed a 4pin 5 wire, wiring kit to hook up lights on our hauling trailer. This kit is easier to work with than trying to assemble and wire everything yourself.Overall it’s well made, and the wrapped wires make it feel safer.
Allan P
Reviewed in the United States on February 17, 2025
I specifically ordered the Oyviny 4 Pin 5 Wire Wiring Harness strictly because the ends of the extension could be wired directly into the wires already installed in my car. My 4 pin harness somehow came loose and the pins were ground down dragging on the road.The set comes with the extender and a 22 foot wishbone wiring kit. The extender is pretty standard fare but, unlike most, needs to be wired vs. just having a 4 pin connector on both sides. What I really like about it though is the trailer harness. Unlike every other one I have used which is coated in plastic, the Oyviny set is covered in a flexible mesh sheath. It makes it flexible as well as weatherproof. It really was so easy to work with.If you are looking for a wiring harness that works well but is also easy to work WITH, this is a great option. The flexible mesh makes it a breeze and, at only $28, it is nicely priced.
Jamie E
Reviewed in the United States on February 16, 2025
This is a really good trailer harness. If you just need a 4 pin harness, this is perfect. It comes with both left and right in wire looms. Good quality all copper wire which is important for outdoor usage and is color coded so it's easy to identify when wiring lights.
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