Oyviny 4 Pin 5 Wire Trailer Wiring Harness 22FT – Pure Copper, Nylon Net Tube Protection
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Description
xOverview
Upgrade your trailer wiring with Oyviny’s 4 Pin 5 Wire Trailer Wiring Harness. This 22 ft kit is designed to rewire taillight circuits on both sides, using a practical wishbone Y-Harness design that minimizes splicing and keeps power routing neat from hitch to taillights. Built for real-world use, it blends straightforward installation with durable construction so you can focus on the road ahead rather than wrestling with tangled wires.
The kit combines a color-coded 4-way flat harness with a robust build. Copper conductors deliver reliable signal transmission, while a thick PVC coating shields against moisture and corrosion. A black nylon net tube wraps the wires, adding extra protection where cables duck under trailers and through chassis areas prone to abrasion.
What you get
- Y-Harness Connector: a wishbone design that lets two brown wires feed left and right taillights without unnecessary splicing.
- Color coded wires: simple, intuitive wiring for brake lights, turn signals, and taillights on both sides.
- Durable construction: thick PVC insulation, pure copper conductors, and a nylon net shield for long-lasting use.
- Ample length: 22 ft of trailer-side wiring plus 2.5 ft ground lead for flexible routing and installation options.
- Wide compatibility: fits industry-standard 4-way flat sockets, ideal for replacing worn wiring on a broad range of trailers.
Why this matters
- Reliability in everyday use: copper conductors and protective coating help preserve signal integrity and resist wear from road exposure.
- All-in-one simplicity: the Y-Harness design reduces splicing complexity, saving time during installation and maintenance.
- Flexible installation: generous length supports a variety of trailer layouts and mounting options.
- Protection where it matters: nylon net tube shields wiring in high-friction zones, guarding against abrasion and chafing.
Real-world use cases
Whether retrofitting an older trailer for safer night signaling or replacing frayed wiring on a work trailer that travels weekly, this kit helps you re-route power cleanly and efficiently. The clear color coding makes it easier to verify connections at a glance, while the sturdy build stands up to outdoor exposure and rough road conditions.
Installation tips
- Plan your wire path before removal to keep the final setup tidy and easily serviceable.
- Route the nylon net tube away from moving parts, heat sources, and sharp edges; secure with zip ties as needed.
- Test all lighting functions with the tow vehicle before heading out on the road.
Key specs at a glance
4-pin, 5-wire trailer side configuration; 22 ft main run + 2.5 ft ground lead; copper conductors; PVC insulation; nylon net protection. Designed to work with standard 4-way flat trailer sockets.
FAQ
Q: Is this harness compatible with all 4-way flat trailers?
A: Yes. It’s designed to fit industry-standard 4-way flat sockets and can replace worn wiring on many trailers.
Q: How long is the wiring and is it suitable for longer trailer installs?
A: The kit includes 22 ft of wiring plus a 2.5 ft ground lead, offering flexible routing for most trailer layouts.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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