SUZCO 4-Way Flat Plug Color-Coded Trailer Light Harness

Last updated: May 17, 2022


This trailer light harness is straightforward and comes with wiring instructions. There is adequate length in the wire. The harness is corrosion resistant.

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Product Details

Key Takeaway: This trailer light harness comes with easy-to-understand instructions.

In our analysis, the SUZCO SUZCO 4-Way Flat Plug Color-Coded Trailer Light Harness placed 3rd when we looked at the top 3 products in the category. For the full ranking, see below.

From The Manufacturer

ITEM TYPE: This is a 25 foot male & female 4-flat marine trailer wiring harness with 4-way conductors and a white ground wire, made of 18-gauge wire, designed to split at the trailer tongue and run down each side of the trailer. The 4 flat trailer wire is color-coded and bonded wire to easily splice into your trailer’s wiring system, no need for splicing wires. This trailer wire harness kit is completely sealed for a long corrosion-resistant installation. EXTENSION INCLUDING: This 25foot 4 wire boat trailer wiring extension can conform to the SAE J1128 specification. Extends wiring system provides more flexibility. It can protect tow vehicle electronics from wiring shorts. Includes a 4-feet trunk connector, splices, and clips. This trailer wire harness kit also can work on an COPPER trailer based on the ground wire. ENOUGH LENGHT GROUND WIRE: This trailer wire extension with 4 way flat plug connector is designed to supply power for tail lights, turn and brake lights, as well as a ground connection. The white grounding wire is so enough long to wiring. The trailer side ground wire is about 2ft. Trailer wiring harness features a ground wire. The white ground wire is made of 18-gauge, which is corrosion resistant terminal. 4-WAY CONNECTORS & FITMENT: You can install the trailer wire so quickly and easily through the 4-way connectors. 4-pin connectors are available allowing the basic hookup of the three lighting functions (running, turn, and brake lights) plus one pin is provided for a ground wire. Most standard light duty trailers will use a 4-pole flat connector. Not compatible with motorcycle trailer wiring, and you could confirm the fitment to be not the wrong item before ordering. 4 WIRING INSTRUCTION: There are instructions for wiring the running light and license plate lights included. The different color wires are clearly identified as each wire’s function, so you can make the installation safe and straight-forward.

View our Trailer Light Harness buying guide for in-depth advice and recommendations.

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