Boating Essentials 5-Way Trailer Wire Harnesses

Boating Essentials 5-way trailer wire harnesses act as the link to transmit power and signals from your vehicle to the trailer's electrical system to ensure the trailer's taillights, brake lights, and turn signals operate in sync with your vehicle. The fifth wire is specifically for trailers with surge brakes, as it connects to the reverse light circuit to disengage the brakes when the vehicle is backing up. The ground wire is essential for completing the electrical circuit. These 5-way trailer wire harnesses by Boating Essentials feature color-coded wires to simplify setup and reduce installation errors.