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🔌 Power your trailer with confidence—connect like a pro, wherever the road takes you!
The Gonice 25Ft 4 Pin Trailer Wiring Harness Extension Kit features a durable 18-gauge pure copper wire with tin plating and PVC coating for superior corrosion resistance. Designed for easy installation with color-coded 4-way flat connectors, it supports trailers up to 80" wide, including marine and utility trailers. Trusted by thousands with a 4.6-star rating, this kit ensures reliable electrical connectivity in all conditions.
| ASIN | B0BQM6YMMS |
| Best Sellers Rank | #74,130 in Automotive ( See Top 100 in Automotive ) #262 in Automotive Replacement Electrical Wiring Harnesses |
| Brand | Gonice |
| Brand Name | Gonice |
| Cable Type | Trailer Wiring Harness |
| Connector Type | Flat 4-way |
| Customer Reviews | 4.6 out of 5 stars 946 Reviews |
| Item Weight | 0.29 Kilograms |
| Manufacturer | Gonice |
| Material | Copper |
| Material Type | Copper |
| Model | TCX-25 |
| Part Number | TCX-25 |
| Wire Diameter | 1.02 Millimeters |
T**F
A1 seller
super good price , fast delivery , good product
K**N
Best trailer wiring on Amazon
Works perfect, very nice thick coated cables. Solid construction. No complaints, and way better than the other garbage. Bought this twice and will by for every trailer for now on. Length is good enough for most trailers I used it for my 4x8 folding trailer with an a frame tongue and had about 4 or 5 feet left if you run it down the center of the trailer you’ll have more but I ran mine through the rails in the side. Also the 4pin connector is sheathed so if it protects your vehicle wiring harness.
W**S
Wires for trailer lights
Good product works good
K**S
Straight forward trailer wiring
Just installed this wiring today. I am using it to flat tow my car behind my motorhome. Color scheme matched what I was working with. Wire thickness was perfect for running it through 1/4 inch split conduit.
J**Y
Worth the money
Haven’t had any issues with it. The quality seems pretty good but only time will tell. The wiring didn’t come damaged and everything works as it should.
E**K
Want lightning
Very nice kit
R**D
Good value
What a great deal this wire harness is. It worked good and my trailer is back on the road
A**R
Great kit for the price
It was delivered fast and packed well the kit was just as described and easy to installed I just pulled the old wires out one side at a time and as I did I replaced it with the new then hooked it up .
Trustpilot
4 days ago
2 months ago