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Miady 25ft Trailer Wiring Harness with 4 Flat Connector, 18 AWG Color Coded Wires Trailers Light Wirings Harness Extension with 4ft White Ground Wire

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$16.99

$ 8 .99 $8.99

In Stock

About this item

  • Long Enough: The Miady 25' Trailer Wiring Harness 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.
  • Wishbone Style Wiring Setup Designed: Constructed with Wishbone Style Wiring Setup and 4 way connectors design makes the running light circuit and splits it at the trailer connector, so you do not have to run a jumper wire from one taillight to the other. Simplify the installation process to save more time.
  • 4FT LENGHT GROUND WIRE: Equipped with 4 Way flat plug connector with trailer ends and a white ground wire, designed to split at the trailer tongue and run down each side of the trailer. The trailer side ground wire is 4ft, it is enough to use for your trailer, which is completely sealed for a long corrosion-resistant installation.
  • SIMPLIFIED CONNECTION: Come with 18 AWG COLOR CODED WIRES clearly identify each wire's function, makes it much easier for wires connection as well as adding more convenience and installation safe and straight-forward.
  • Wide Application: Ideal for marine boat trailer, horse trailer, motorcycle trailer, ATV trailer, and other cargo utility trailer hitches (tow/haul vehicle must have 4-way plug)



Product Description

TWH

WIDELY USED

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Importance of Selecting Trailer Wiring Harness with 4 Flat Connector

  • Miady 25ft 18 AWG Color Coded Wires Trailer Wiring Harness with 4 Flat Connector gives you the extra length, just need to extend current truck to trailer wires.
  • Constructed with Wishbone Style Wiring Setup and 4 way connectors design makes the running light circuit and splits it at the trailer connector, so you do not have to run a jumper wire from one taillight to the other.
  • Equipped with a 4ft ground wire, which is enough to use for your trailer, which is completely sealed for a long corrosion-resistant installation.
  • Ideal for marine boat trailer, horse trailer, motorcycle trailer, ATV trailer, and other cargo utility trailer hitches (tow/haul vehicle must have 4-way plug) .

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Specification:

  • Color: coded 18 AWG wires
  • Weight:1.1 pound
  • Product Dimension: 25ft
  • Type: Wishbone-style wiring setup

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Safe and Simple Installation

The innovative wishbone design takes the running light circuit and splits it at the trailer connector so you do not have to run a jumper wire from one taillight to the other. To further simplify the installation process, our kit features color coded 18 AWG wires for safely determining each wire’s function.

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What You Get:

  • 25ft Trailer Wiring Harness * 1
  • Miady after-sales service
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David Frye
Reviewed in the United States on May 10, 2025
I bought this to wire my trailer for my lights and everything
Adam Blumenthal
Reviewed in the United States on May 26, 2024
easy to install, but you will need to get a wiring diagram off the internet as no instructions are included
Dorothy L. Cox
Reviewed in the United States on July 2, 2023
Had to rewrite our trailer and this wiring harness works greats ! Thank you for a superb product!
Trent C.
Reviewed in the United States on November 27, 2023
length is good for trailers up to 18' by the time you connect enough lead to the tongue to reach your vehicle and then split it for left and right side lights.
Gordon yunker
Reviewed in the United States on January 10, 2023
I have not had opportunity to install it yet. It appear to be a good quality’s product.
Kindle Customer
Reviewed in the United States on May 28, 2022
I needed to rewire my utility trailer after 10 years of hard use. Local auto parts stores didn't have what I needed. The bonded wire design made for relative easy installation. BUT, and it's a big but, the ground wire is way too short. I had to splice this ground wire with another wire to reach the trailer ground point.
Metal Innovations
Reviewed in Mexico on January 24, 2022
De buena calidad y a un buen precio.
xtopherous
Reviewed in the United States on August 1, 2021
Bought a small boat from a guy that clearly didn't understand how electricity worked. After one look decided i needed to step the trailer. Kit was great, 5 wire so the constant hot lead is split left and right so you dont have to run across for the markers.
Air-Cooled Preservation Society
Reviewed in the United States on September 24, 2020
Inexpensive and did the job. This wiring harness put my trailer back on the road with proper lights and blinkers. It seemed plenty long enough and of good quality. Only time will tell how long it will last and what kind of quality the rubber coating on the wires is. Hi This wiring harness put my trailer back on the road with proper lights and blinkers. It seemed plenty long enough and of good quality. Only time will tell how long it will last and what kind of quality the rubber coating on the wires is.
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