Curt custom wiring, 4-way flat output, select ford bronco, f100, f-150, f-250, f-350

The Curt Custom Wiring Harness with a 4-Way Flat Output delivers a clean, reliable electrical connection between your vehicle and trailer without requiring cutting, soldering, or splicing into your factory wiring. Custom-engineered for select classic and modern trucks and SUVs, this vehicle-specific harness utilizes original equipment manufacturer (OEM) compatible plugs that snap directly into your vehicle’s existing taillight assembly, establishing a factory-style installation in minutes.

Equipped with industry-standard 4-way flat output connectors, this wiring kit powers your trailer’s signal lights, tail lamps, and brake lights to keep you fully compliant with road safety regulations. Constructed with advanced surface-mount technology (SMT) and durable circuit design, the harness minimizes heat generation and maximizes light intensity and longevity. Each plug-and-play harness comes complete with a rubber dust cover to protect the 4-flat terminal pins from road grime, moisture, rust, and trail debris when not actively towing.