Each of these trailer 4-pin connectors comes with unique wiring diagrams. It can be a real pain ... for a quick and snug assembly. CURT 4-Pin Flat Wiring Harness CURT's 4-pin Flat wiring harness ...

You need to have lights on your flat ... trailer indicates a right turn, which could have disastrous results. Check out our diagrams and products we’ve selected so you can do a proper wiring ...