Establish a secure connection to your tow vehicle with this 4 pole round socket. Die-cast zinc connector has concealed terminals for easy assembly. Product Features:Rear Connector Housing For Enhanced WeatherproofingHeavy-Duty Die-Cast Zinc DesignMeets SAE StandardsScrew Holes For Easy Mounting OptionsIncludes Mounting HardwareIncludes Step-By-Step Procedures And Diagrams100 Percent Tested