Custom Wiring Harness 4-Way Flat Output 16-23 Toyota Tacoma

Get your Tacoma ready for towing with the CURT 4-Way Flat Output Wiring Harness. Engineered for 2016–2023 Toyota Tacoma models, this custom wiring harness provides a fast and dependable way to connect trailer lighting while maintaining OE-style integration and protecting the truck’s factory electrical system.

The system utilizes plug-and-play connectors that interface directly with the Tacoma’s factory wiring, eliminating the need for cutting, splicing, or complicated electrical modifications. A powered Modulite converter draws power directly from the battery to help protect sensitive vehicle electronics while ensuring consistent trailer lighting performance. The standard 4-way flat connector supports tail lights, brake lights, and turn signals for a wide variety of trailers, including utility trailers, small campers, and boat trailers. Designed for long-term durability, the harness also includes a protective dust cover to help keep the connector clean and corrosion-free between towing applications.