Curt 58989 RV HARNESS, 2021 FORD F150

This particular RV dinghy tow wiring harness is designed for select years of the Ford F-150 with backup sensors (not compatible with LED taillights; see application info to verify fitment).Uses towed vehicle's existing taillights, brake lights and turn signals. Connects a towed vehicle to an RV using a standard 4-way flat trailer plug. Simple plug-and-play design eliminates the need for cutting or splicing.Integrated block diodes isolate sensitive vehicle electronics from RV signals.