MOCW 7-Foot 7-Pin Trailer Wiring Harness Extension for 5th Wheel Gooseneck

Overview

The MOCW 7-Foot 7-Pin Trailer Wiring Harness Extension expands your truck’s tow wiring to the bed area while keeping the rear socket functional. This compact, durable harness is designed for 5th wheel and gooseneck trailers, offering a clean, plug-and-play upgrade without modifying factory wiring.

Built to fit a range of popular pickups, the extension supports multiple trailer systems and helps organize power and signaling where you need it most, with a focus on real-world practicality and ease of use.

Key Features

• Compatibility: Two wiring options designed for Chevrolet, Dodge, Ford, GMC, Nissan, Ram, and Toyota.
• Function: Extends the existing tow wiring to route a 7-way RV blade socket into the truck bed while preserving rear socket functionality.
• Fitment: Connects taillights, brake lights, reverse lights, turn signals, and auxiliary power for easy 5th wheel or gooseneck wiring.
• Easy Installation: 7 ft length offers flexible bed placement; right-angle plug enables simple plug-and-play setup without cutting or splicing; mounting may require a 2-1/8-inch hole saw.
• Maintain & Durability: SMT circuitry provides a standard trailer output (4-way or 5-way flat) and a spring-loaded dust cover keeps the connector clean when not in use.

Compatibility & Use

Designed to work with a broad range of vehicles and trailer configurations, this extension supports typical taillights and signaling functions essential for tow loads. It’s suitable for 5th wheel and gooseneck setups, helping you manage wiring without compromising existing connections.

Easy Installation & Practical Use

• 7-foot length provides flexible positioning in the truck bed for optimal routing.
• Plug-and-play design minimizes the need for cutting or splicing.
• Right-angle connector simplifies routing and connection to the trailer wiring system.

With thoughtful design and robust construction, this harness offers a practical upgrade for towing setups, aiming to keep wiring organized, accessible, and ready for use when you need it. While results vary by vehicle and trailer configuration, users may experience easier wiring management and streamlined connections during setup and hitching.