Need to replace the trailer wiring socket on your truck or SUV? This Curt Manufacturing 58170 connector is a heavy-duty, reliable choice. It's the vehicle-end (car end) part of a 7-pin round trailer wiring system, connecting all your trailer's lights and brakes (running lights, brake lights, turn signals, electric brake power, etc.). The housing is made from strong die-cast metal, not plastic, so it can take a beating. It has a spring-loaded dust cover to protect the pins from dirt, moisture, and corrosion when not in use. The terminals are concealed for added weather resistance, and there's a locking tab to keep the trailer plug securely connected. This is a splice-in connector, meaning you'll need to connect your vehicle's wires to it (wires not included). A top-quality upgrade or replacement for safe and reliable towing.