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The Gonice 25Ft 4 Pin Trailer Wiring Harness Extension Kit features a durable 18-gauge pure copper wire with tin plating for superior conductivity and corrosion resistance. Its 4-way flat plug design includes a 5-wire male and 4-wire female connector with color-coded wiring for easy installation. Perfectly suited for trailers up to 80" wide, this kit ensures reliable lighting and braking signals across marine, horse, and cargo trailers.







| ASIN | B0BQM6YMMS |
| Best Sellers Rank | #11,913 in Automotive ( See Top 100 in Automotive ) #26 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 977 Reviews |
| Item Weight | 0.29 kg |
| Manufacturer | Gonice |
| Material | Copper |
| Material Type | Copper |
| Model | TCX-25 |
| Number of Items | 1 |
| Part Number | TCX-25 |
| Unit Count | 1 Count |
| Wire Diameter | 1.02 millimeters |
J**N
Lights are a go
Perfect wiring kit for my trailer. Simply awesome
C**C
good value
was just what i needed without running around town to get
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.
O**O
Ground wire is short.
Harness seems to be good quality, but FYI, the ground wire is only about 2 to 3 feet long. Description doesn’t mention that, so i only gave it 4 stars. The short ground wire wouldn’t work for my application since the trailer body tilts and I can’t securely ground the hitch.
T**F
A1 seller
super good price , fast delivery , good product
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 .
A**G
Awsome
Decent quality for the money cant beat it
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.
Trustpilot
1 month ago
1 week ago