PKDOAX 4-Pin Round Trailer Connector Socket – Heavy-Duty Die-Cast Metal 4-Way Trailer Female Connector, Trailer Light Connector – Universal Towing Replacement

Die-Cast Metal Housing – Built from solid zinc die-cast metal (not cheap plastic), this heavy-duty 4-pin round socket is made to survive years of towing, road salt, and harsh weather

Spring-Loaded Protective Cover – Equipped with a spring-loaded dust cover, the connector stays protected from dirt, moisture, road salt, and debris when not in use — helping maintain clean, reliable electrical contact for every towing trip

Secure & Reliable Connection – The interior locking tab firmly secures the trailer plug in place, preventing accidental disconnection during driving and ensuring consistent power delivery to taillights, brake lights, and turn signals

Hidden Wire Terminals – Designed with internal, concealed terminals to shield wiring from exposure to rain, dirt, and corrosion. Ideal for long-term outdoor use and demanding towing conditions (wires not included)

Universal Replacement – Matches industry-standard 4-pin round trailer connectors and works as an excellent replacement for vehicle-side 4-flat sockets. Supports easy DIY installation on most trucks, SUVs, RVs, and trailers