Tekonsha 303500 Trailer Brake Controller Custom Harness – Plug & Play Vehicle Wiring for Select Models

Effortless Plug & Play wiring for your Tekonsha brake controller

The Tekonsha 303500 custom harness is designed to make a brake controller connect as smoothly as possible to your vehicle. This two plug design aligns with Tekonsha brake controllers and your car’s factory ports, so you can install with minimal effort and a tidy result. No cutting, splicing, or tape required, just a clean, secure connection that stays put as you drive.

With four copper wires shielded by a braided nylon mesh, the harness is built to handle the everyday realities of towing. The PNP (plug and play) connectors at each end are tailored to fit your vehicle make and model year, ensuring a snug fit that reduces loom stress and protects against wear. The result is a connection that feels sturdy yet flexible, letting you position the brake controller where it makes the most sense for your truck, SUV, or van without pulling on the wires.

Key design features

• VEHICLE APPLICATION: broad coverage across many Ford, Lincoln, and select Land Rover models with factory tow provisions, plus popular configurations like F-150, Expedition, Explorer, and more.
• CUSTOM DESIGN: two plug interfaces that work with any Tekonsha brake controller featuring a Plug & Play port, plus a vehicle-side plug that matches the factory harness.
• PROTECTED WIRING: four copper conductors wrapped in braided mesh to resist nicks, punctures, and heat, giving a factory-like appearance and longer life.
• EASY INSTALLATION: plug one end into the brake controller and the other into the vehicle port, following the vehicle-specific instructions for a quick, secure setup.

Durability and real-world use

Designed for responsible daily use, the Tekonsha 303500 harness prioritizes dependable electrical connections and a clean, professional look under the dash. The braided protective layer helps guard the wiring from common road hazards, while the plug and play design keeps the installation tidy and reversible if you ever switch controllers or vehicles.

In practice, this harness can help you position your brake controller for easier accessibility, maintain a neat wiring pathway, and enjoy peace of mind knowing the connections are designed to resist typical driving conditions. It is a practical upgrade for anyone who values a straightforward setup and a secure, plug-in connection that travels with the unit as you go.

Life on the road often means jumping between vehicles or upgrading equipment. The Tekonsha 303500 harness is built to fit a range of models with tow packages, offering a reliable way to link your brake controller with its vehicle port while preserving the look of a stock installation.