4 Pin Trailer Wiring Harness 3FT, 18 AWG 4 Way Flat Trailer Wiring Extension Connector Harness Vehicle Side Trailer Side 4 Prong Trailer Light Plug Trailer Hitch Wire Extension. WIDELY USED: 18AWG 4 pin trailer wire extension cord is great for connecting brake lights, turn signals, and taillights for power, widely used for trailer hitch, all-terrain trailer, motorcycle trailer, boat trailer, ATV trailer, and other cargo tools.
