Vehicle-Side 4 Pin Trailer Wiring Harness 14AWG Pure Copper Wire 49 Inch, 4-Way Flat Trailer Connector Female Plug with Dust Cover, 4 Prong Trailer Light Plug Socket Replacement Hitch Wiring

$21.66$36.1040% OFF

Price as of August 28, 2026 at 11:45 AM

TagsWalmart Smart Home Automotive Electronics

This vehicle-side 4-way flat female trailer socket is engineered to pair with standard 4-prong flat trailer plugs, offering a universal electrical connection solution for nearly all light-duty tow trailers. It seamlessly links your tow vehicle’s lighting circuit to trailer running lights, brake lamps and turn signals. The full 49-inch wiring harness adopts premium 14 AWG pure copper wire core to guarantee stable signal transmission and outstanding conductivity. Every wire is wrapped in thick flexible PVC insulation that stands up to long-term outdoor exposure, resisting wear, cracking, corrosion and water damage for year-round reliable operation in harsh road conditions. Measuring 49 inches (4 feet) end to end, the generous wire length provides enough room to route the harness around hitches, bumpers and undercarriage components. You can freely adjust the mounting position without pulling wires taut, making rewiring and replacement far more convenient. Installation takes minutes with zero complicated tools required. Each wire is pre-stripped and color-marked for clear identification of left turn, right turn, ground and brake light circuits for straightforward splicing. Attached dust cover fully shields the plug opening when not connected, preventing water, mud and grit from entering contacts to avoid short circuits and premature wear. Highly versatile for all common light trailer types, including utility cargo trailers, fishing boat trailers, ATV/UTV haulers, motorcycle trailers and small camper trailers. It is an ideal OEM replacement or aftermarket upgrade for any vehicle equipped with a 4-way flat trailer tow system.