CURT electrical connectors are designed and manufactured to give you a reliable connection every time you plug in your trailer. The CURT 58071 4-Way Round Connector is designed to supply power for taillights, turn signals, and brake lights, as well as a ground connection. It features durable die-cast metal construction and has concealed terminals and a spring-loaded steel cover to resist damage from dust and water. This 4-way round connector is a female-end socket, specifically designed for the vehicle side of the connection.• Splices into vehicle wiring to provide a connection for a trailer plug• 4-way round output connects taillights, brake lights, and turn signals• Constructed from strong die-cast metal• Dust and water-resistant design to withstand the elements• Concealed terminals help ensure a reliable connection• Spring-loaded dust cover keeps connector clean when not in use• Wires not included Concealed terminals & spring-loaded steel cover to resist damage Female-end socket designed for the vehicle side of the connection Wires not included | Curt 58071 4-Way Round Connector Socket, Vehicle Side