VINAUO 35FT Trailer Wiring Harness Kit — 4-Wire Color Coded Wishbone, 42" Ground

Overview

The VINAUO 35FT Trailer Wiring Harness Kit delivers a reliable, color‑coded 4‑wire solution designed to simplify trailer electrical setup. Its wishbone design guides wires for a quick, tidy connection, while the color coding clearly identifies each function. Built with corrosion‑resistant PVC, the harness aims to maintain solid electrical contact even when exposed to tough environments. The assembly uses a 4‑flat connector system and includes a 42‑inch ground lead to ensure a solid ground path, helping you extend or connect trailer lighting without unnecessary fiddling.

Key Benefits at a Glance

• Color‑coded reliability: Each wire is clearly identified by function, reducing guesswork and miswiring during installation.
• Wishbone design for speed: The geometry guides the wires and simplifies quick connections to the trailer.
• Durable, corrosion‑resistant build: PVC construction delivers better conductivity and oxidation resistance in wet or salty environments.
• Long ground lead: A 42" ground wire supports solid grounding for consistent lighting performance.
• Versatile 35‑ft length: Provides ample reach to extend your current vehicle to the trailer without splicing, when appropriate.
• 4‑flat connector included: Uses a standard plug system for tail lights, turn signals, and brake lights with grounding.

What You Might Use It For

• Marine and boat trailers: Extends wiring to reach distant lights on watercraft platforms.
• Horse and cargo trailers: Keeps lighting and signaling aligned with the tow vehicle for safer transport.
• ATV, utility, and appendage trailers: Supports reliable power to tail lights and brake signals during trips.

Installation and Compatibility

The kit is designed for 4‑way flat trailer connections and can be used to extend existing wiring without complex splicing. It is clearly noted that this harness cannot be used for motorcycle trailer wiring. The white wire serves as the ground, brown handles tail lights, yellow covers driver‑side stop/turn, and green handles passenger‑side stop/turn. While the 35‑foot length offers flexibility, verify your trailer’s wiring layout to ensure a clean fit and proper function.

Notes on Use

• Intended for standard 4‑wire flat trailer systems; not for motorcycles or other non‑standard configurations.
• Check local regulations and vehicle compatibility before install to ensure proper operation.