Pollak 12-723 4-Way Flat to 7-Way RV Blade Socket Adapter Harness – Integrated Conversion Kit

The Pollak 12-723 is a heavy-duty wiring solution designed to transform your vehicle’s basic 4-way flat output into a fully functional 7-way RV blade-style socket. This adapter harness is the professional choice for drivers who need to upgrade their towing capabilities to handle larger trailers, campers, and car haulers without a total electrical overhaul.

Unlike standard adapters, the 12-723 features a glass-filled nylon socket for maximum impact resistance and a non-corrosive lifespan. The integrated harness is protected by split-loom tubing to shield wires from abrasion and the elements. The socket is equipped with a high-tension spring-loaded lid and a weather-tight gasket to keep dust and moisture away from the connection points when not in use.

Complete Circuit Support This harness allows you to retain your existing 4-way flat lighting (Tail, Turn, Brake) while providing additional pigtail leads to connect essential auxiliary functions:

• Electric Brakes (Blue Wire)

• 12V Battery Power (Black Wire)

• Reverse/Backup Lights (Yellow Wire)

• Ground (White Wire with Ring Terminal)