Ford F150 Trailer Wire Harness and Connector - Best Order Ford F150 Trailer Wire Harness and Connector online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store. 2019 Ford F-150 Trailer Wiring | etrailer Fastest shipping available and a lowest price 2019 Ford F-150 trailer wiring guarantee. Expert lifetime technical support on all purchases. Complete 2019 Ford F-150 Trailer Wiring installation instructions and customer reviews. Call 800-298-8924 to place your order or order online at etrailer.