Review on 🔌 Attwood 14134-7 Trailer Adapter: 7-Way to 5-Way Connector & Wiring Harness for Trailer Lighting by Jacob Richardson

Great solution for towing many new boat trailers (and other trailers) with SURGE disc brakes and 5 wire flat connectors. Older drum impulse brakes could not operate the trailer brakes backwards. The trailer's new disc brakes work in both directions and lock up if your hitch is squeezed when attempting to reverse. An additional wire in the 5 pin connector provides an electrical signal from your reversing lights which disables the brakes so squeezing the hitch when reversing does not prevent your trailer from moving. This adapter handles all possible rewiring of electrical cords that are already in a properly wired 7-pin socket. Just plug in and get started.