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A quick rundown of this product’s key features:
50FT Male & 4-Flat Female Trailer Wiring Harness Kit: Fits Trailers under & over 80″ wide. Wire length (42′ & 8′) makes this trailer harness kit perfect for trailers measuring under or over 80″ wide.
18 AWG Color Coded Wires Wishbone Style Harness: 4 flat trailer wire is color-coded and bonded wire for easily installation. White wire: Ground (Negative). Brown wire: Tail Lights. Yellow wire: Driver Side Stop/Turn Lights. Green wire: Passenger Side Stop/Turn Lights. The white ground wire is made of 18-gauge, reduce corrosion and makes installation safe.
50′ Trailer Wiring: Designed to split at the trailer tongue and run down each side of the trailer, 8′ trailer side ground wire is enough to use for your trailer. Gives you the extra length, just need to extend current truck to trailer wires. No need to splice your new wires, simply extend them with this extender.
4-Way Flat Trailer Harness Kit: Complying with SAE J1128 standards for a low voltage primary cable. Constructed from the highest quality materials and superior quality guaranteed.
Widely Application: Trailer Light Wire Suitable for marine boat trailer, horse trailer, ATV trailer, and other cargo utility trailer hitches (tow/haul vehicle must have 4-way plug). Not compatible with motorcycle trailer wiring. Please confirm the fitment with us before ordering.
Our Top Reviews
Reviewer: R D
Rating: 5.0 out of 5 stars
Title: Perfect to rewire my boat trailer
Review: I needed to get a much longer wire than standard because we bought a boat that had a 30ft trailer I need to rewire. The length worked out perfectly and I think this will hold up for a while. I would re-buy this if I needed to rewire another trailer
Reviewer: Jerry D Howard
Rating: 5.0 out of 5 stars
Title: Good quality…
Review: Boat trailer retire…product was as advertised.
Reviewer: outdoor girl
Rating: 5.0 out of 5 stars
Title: Rewired boat trailer
Review: Easy rewire of boat trailer as a do it your selfer
Reviewer: H2Cobra
Rating: 4.0 out of 5 stars
Title: Just what is needed and no more
Review: It is a complete kit for wiring, but you may want to add a rubber grommet for any hole drilled to get the wiring out of the trunk or rear body. Long enough for my use, should be good for most vehicles. Trucks may take a bit more work to install. Works fine and should last for quite a while.
Reviewer: Bud
Rating: 5.0 out of 5 stars
Title: Well made
Review: Easy to install
Reviewer: Brian
Rating: 5.0 out of 5 stars
Title: Excellent quality
Review: This is a quality set of trailer wiring. This isn’t your cheap Harbor Freight wiring. The wire jacket is nice and solid, yet flexible. The copper wiring has plenty of strands and thickness to make it a durable wire harness. I have bought the Harbor Freight brand before and others that were so cheap that the copper wiring simply snapped by pulling on the jacket. You won’t have that problem here. Another issue I’ve had with cheap wiring is that the connector pins are thin and weak. Again, not the case here. The pins are sturdy and won’t snap off easily. With fifty feet, you have plenty of length for almost any re wiring job you need to do. I plan on redoing my boat trailer wiring this Spring. Just make sure to use a marine heat shrink on your connections to prevent corrosion and premature failure. This set should last a long time.
Reviewer: kewlkarz
Rating: 5.0 out of 5 stars
Title: Wiring harness worked great
Review: I got this to wire up a new “truck bed trailer camper” thing for me and my kid to adventure in.I got the 50ft because I wasn’t 100% on how much I was going to need or how I was running it at the time. I didn’t need the truck side of the wiring but I was glad I had it as I needed the extra white grounding wire off of it to ground the back tail lights bank to the frame.The wiring was good, standard colors, well packaged. If I had anything bad to say at all I’d say I wish it included a little more grounding cable with it. Overall if I had another trailer to wire up, I’d get this again.
Reviewer: Gabrielle G.
Rating: 2.0 out of 5 stars
Title: Connect or not so great
Review: Connect or not so great On the Trailer side the wires going into the connector has a short
Price effective as of Mar 23, 2025 08:19:41 UTC
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