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4-Way Round Connector Plug & Socket (Packaged)

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Quick Facts:

  • Splices into existing wiring to provide connections for both vehicle and trailer
  • 4-way round output connects tail lights, brake lights and turn signals
  • Constructed from strong die-cast metal
  • Concealed terminals help ensure a reliable connection
  • Spring-loaded dust cover keeps connector clean when not in use
  • Wires not included
  • Constructed from strong die-cast metal
  • CURT part number: 58671

Like trailer hitches and ball mounts, electrical connectors range all over the board in shape, size and capability, but no matter what your trailer's electrical functions are, you need a solid connection to keep the power flowing and ensure safety on the road. CURT electrical connectors are designed and manufactured to give you a reliable connection every time you plug in your trailer. These 4-way round connectors are designed to supply power for tail lights, turn signals and brake lights, as well as a ground connection. They feature durable die-cast metal construction and come with concealed terminals and a spring-loaded steel cover to resist damage from dust and water. This 4-way round connector kit includes both a male-end plug for your trailer and a female-end socket for your vehicle.


  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of these trailer wiring connectors. The trailer plug features tabs on the sides for a better grip when plugging into the vehicle socket or unplugging
  • VERSATILE DESIGN. These trailer wiring connectors make great replacement 4-flat wiring plugs and socket. They match industry-standard 4-way round connectors and connects the taillights, brake lights and turn signals
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of these 4-pin trailer wiring connectors is made from strong, durable die-cast metal
  • RELIABLE CONNECTION. These 4-way round trailer wiring connectors are equipped with locking tabs that secure the plug into the socket when inserted. This helps maintain a reliable wiring connection in spite of bumps and vibrations while towing
  • WEATHER-RESISTANT. To help protect the splice-in wiring connections, these 4-wire trailer plugs feature concealed terminals, keeping the wires from direct exposure to rain, dirt, road salt and other corrosive threats (wires not included)

More Information
SKU 2020103700
Brand Curtâ„¢
Country of Origin Taiwan
Quantity In Package 1
Material Type Die-Cast
Sales Unit of Measure EA
UPC 612314001675
Manufacturer Reference Number 58671

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