4 Pole Flat Connector and Wiring, Trailer End, 48" Wires.

Features:

Wire your trailer with this universal, splice-in wiring harness so that you can connect the trailer's wiring to your vehicle's during towing
Designed for use with 2-wire electrical systems
4-Pole flat trailer-end connector plugs into the 4-way flat on your tow vehicle
Color-coded wires allow for simple hardwiring to existing trailer connections

58032 Curt Wiring Harness with 4-Pole Flat Trailer Connector - Trailer End - 48" Long