22FT 4 Pin 5 Wire Trailer Wiring Harness Protected by Nylon Net Tube, Utility Pure Copper Boat Trailer Wiring Kit for Trailer Tail Light Rewiring, Waterproof 4 Pin 5 Wire Trailer Connector

I purchased this 22 ft. 4-pin 5-wire trailer wiring harness for towing my utility trailer, and it’s been fantastic from day one. Length is perfect — The 22-foot cable gives plenty of slack for different towing setups without excess bulk. Complete 5-wire system — It supports all essential trailer lighting functions, including tail lights, brake lights, turn signals, and an additional wire for electric brakes or auxiliary functions. Durable and weatherproof — The wiring is well-insulated, flexible, and resistant to wear and weather, so I’m confident it will last through tough road conditions. Plug fits perfectly — The 4-pin connector mates securely with my truck and trailer sockets, ensuring reliable, no-fuss connections. Easy to install — The wiring is color-coded and well-labeled, which made hooking everything up quick and straightforward—even for a DIYer like me. If you’re looking for a dependable trailer wiring harness that’s the right length and built to last, this kit is a great choice!

Works great. Made adding lights to my cargo carrier so easy to do. If there is a down to this it is that it is a small wire gauge but is fine for the LED lights I added

It's long enough. It's wire is copper (it will not curl in a flame) and it's 18 AWG, which is a bit flimsy IMO but it matches the stated specs, so no fibbing. I find no fault with it, and the price is good. If you trim the leads, you'll want to be prepared to ~3/8" heat-shrink, or tape the loom raw end, as the stuff will quickly unravel if the loom end is not restrained; it's a property of this kind of jacketing. I do find the copper to be . . . brittle? During installation, I broke off two of four wires I'd crimped, at the crimp. It does not seem quite as resilient to bending, but as it stood up to a flame test, it's not CCA. I've chalked it up to my rough handling, but it's not an issue I've encountered doing this sort of thing in the past. The included printed wiring diagram is incorrect, but the wire colors are correct/standard: Green: right stop/turn Yellow: left stop/turn Brown(s): tail/all running lights White: ground The top half of their diagram shows the right side taillight being Yellow, when it should be Brown. That mistake is repeated in one of the pictures in the ad.

Works great, protects the wires from damage while on the trailer. I will purchase again if needed for a different trailer.

Made hooking up the trailer lights super easy. Wires are not thin and cheap

nice harness, worked well, used to rewire one which got damaged

Bought this trailer wiring harness to replace old wires on my boat trailer. Very high quality and good value for the money. The kit had everything I need to complete the job.

Works fine now