Trailer Tow Hitch For 91-94 Ford Explorer Mazda Navajo w/ Wiring Harness Kit. ALL HITCHES COME BOXED, UNLIKE OUR COMPETITORS. Custom Fit Trailer Hitch Wiring Harness (Requires Splicing) Installation Hardware Installation Instructions.W/ 4" Drop 2" Ball. Complete 7-Way Adapter Brake Control Ready. Any product you return must be in the same condition you received it and in the original packaging.