Top 4 Pin Trailer Wiring Reviews

CURT 57186 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Adapter with Brake Controller Wiring

  • BRAKE CONTROLLER CONNECTION. This trailer wiring adapter makes it easy to add wiring for a trailer brake controller. It plugs into a 4-way flat....
  • WEATHER-RESISTANT. This trailer wiring harness adapter comes with a spring-loaded dust cover for the 7-pin wiring socket to protect the terminals from....
  • STANDARD CONNECTION. This trailer hitch wiring adapter plugs into any standard 4-way flat and can be used to connect the taillights, brake lights,....
  • EASY TO INSTALL. This 4-pin to 7-pin trailer adapter with brake controller wiring comes ready to plug into your vehicle or trailer wiring with minimal....
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this trailer harness adapter is made from durable black plastic....
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CURT 57183 4-Way Flat Vehicle-Side to 6-Way Round Trailer Wiring Adapter , Black

  • VERSATILE DESIGN. This trailer wiring adapter makes it easy to connect a mismatched vehicle socket and trailer plug, adapting your 4-way flat connector into a standard 6-way round socket.
  • WEATHER-RESISTANT. This trailer wiring harness adapter comes with a spring-loaded dust cover for the 6-pin wiring socket to protect the terminals from water, dirt and corrosion.
  • STANDARD CONNECTION. This trailer hitch wiring adapter plugs into any standard 4-way flat and can be used to connect the taillights, brake lights, turn signals, trailer brakes and auxiliary power (some splicing required).
  • EASY TO INSTALL. This 4-pin to 6-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with minimal splicing required.
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this trailer harness adapter is made from durable die-cast metal.
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CURT 57224 4-Pin Round Vehicle-Side to 4-Way Trailer Wiring Adapter Black

  • VERSATILE DESIGN. This trailer wiring adapter makes it easy to connect a mismatched vehicle socket and trailer plug, adapting your 4-way round....
  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer wiring adapter. It features tabs on....
  • STANDARD CONNECTION. This trailer hitch wiring adapter plugs into any standard 4-way flat and can be used to connect the taillights, brake lights and....
  • NO-SPLICE INSTALL. This 4-pin round to 4-pin flat trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with zero splicing....
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this trailer harness adapter is made from tough black plastic.
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CURT 55384 Replacement Vehicle-Side Custom USCAR 4-Pin Trailer Wiring Harness, Black

  • NOTE: Vehicle must already be equipped with USCAR.
  • EASY TO INSTALL. No cutting! No splicing! This trailer wiring harness Ts into an existing USCAR connection on your vehicle and equips it with a standard 4-pin trailer wiring connector for plugging in and towing a trailer.
  • STANDARD CONNECTOR. The 4-flat trailer wiring can be used to connect trailer taillights, brake lights and turn signals. 4-way trailer wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle.
  • USCAR-SPECIFIC. This USCAR wiring harness is designed for select vehicles with a standard USCAR socket, ensuring the easiest possible installation and the most reliable wiring connection.
  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this vehicle socket. It features a tab on top for a better grip when plugging into your trailer or unplugging.
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of the 4-pin vehicle wiring socket is made from durable black molded rubber that will never rust or corrode.
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WOFTD 4-Way Trailer Wiring Harness with 5 ft Wires 4-Pin Trailer Wiring Jacketed Cable 4 Flat Trailer Wire Extension Connector - 5 ft

  • WOFTD 4-Way Trailer Wiring Harness with 5 ft Wires 4-Pin Trailer Wiring Jacketed Cable 4 flat trailer wire Extension Connector - 5 ft.
  • The WOFTD 4-way trailer Wiring Harness, the wire is made of 18AWG brass material, The safe temperature is below 105 degrees Celsius and the safe voltage is below 300V. It is wrapped with insulating rubber that will never rust or corrode..
  • This 4-pin trailer wiring plug comes ready to splice into your existing trailer wiring It can be used to connect the taillights, brake lights and turn signals. 4 Way Flat Trailer Wire Harness Connector Socket for Trailer Truck Hitch Wiring..
  • The 5-ft wire lead provides plenty of extra length for a flexible installation.(The Trailer Wiring Harness perfect adapt WOFTD Trailer Plug Adapter).
  • Please feel free to contact us at first if there is any problem when you receive or use our products. We are always here to support you..
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CURT 57187 4-Way Flat Vehicle-Side to 5-Way Trailer Wiring Adapter

  • VERSATILE DESIGN. This trailer wiring adapter makes it easy to connect a mismatched vehicle socket and trailer plug, adapting your 4-way flat connector into a standard 5-way flat socket.
  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer wiring adapter. It features grips on the sides for a better grip when plugging into the vehicle or unplugging.
  • STANDARD CONNECTION. This trailer hitch wiring adapter plugs into any standard 4-way flat and can be used to connect the taillights, brake lights, turn signals and reverse lights (some splicing required).
  • EASY TO INSTALL. This 4-pin to 5-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with minimal splicing required.
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this trailer harness adapter is made from durable molded rubber that will never rust or corrode.
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CURT 57674 Dual-Output 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter with Tester

  • VERSATILE DESIGN. This dual-output trailer wiring adapter makes it easy to tow different trailers with your vehicle, equipping it with a standard 7-way RV blade socket while retaining use of the existing 4-way flat wiring.
  • WEATHER-RESISTANT. This trailer wiring harness adapter comes with dust covers for the 4-pin and 7-pin wiring sockets to protect the terminals from water, dirt and corrosion. The wiring harness is also well-protected with the included slit loom sleeve.
  • INTEGRATED TESTER. The 7-pin output of this dual trailer wiring adapter features a built-in LED wiring tester in the dust cover to ensure proper functionality of your vehicle towing electrical system.
  • STANDARD CONNECTION. This trailer hitch wiring adapter plugs into any standard 4-way flat and can be used to connect the taillights, brake lights, turn signals, reverse lights, trailer brakes and auxiliary power (some splicing required).
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this trailer harness adapter is made from durable black plastic that will never rust or corrode.
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CURT 58071 Vehicle-Side 4-Pin Round Trailer Wiring Harness Socket

  • SPRING-LOADED COVER. To promote long-lasting use and weather resistance, this round 4-pin trailer wiring socket comes with a spring-loaded dust cover.....
  • VERSATILE DESIGN. This vehicle-trailer wiring connector makes a great replacement 4-flat wiring socket. It matches industry-standard 4-way round....
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this 4-pin trailer wiring connector is made from strong, durable....
  • RELIABLE CONNECTION. This 4-way round trailer wiring socket is equipped with a locking tab on the inside of the dust cover that secures the plug in....
  • WEATHER-RESISTANT. To help protect the splice-in wiring connections, this 4-wire vehicle socket features concealed terminals, keeping the wires from....
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CURT 55774 Dual-Output Vehicle-Side 7-Pin, 4-Pin Connectors, Factory Tow Package and USCAR Socket Required

  • VERSATILE DESIGN. This dual-output connector is a great upgrade for a variety of vehicles with a USCAR socket. It provides two standard trailer wiring sockets, a 4-way flat and an RV blade 7-way round socket, allowing for versatile towing options.
  • WEATHER-RESISTANT. This two-way trailer wiring socket is designed to outlast weather exposure. The 7-pin socket has a spring-loaded dust cover that keeps the connection points dry and protected when not in use.
  • RELIABLE CONNECTION. These trailer wiring sockets come ready to plug into existing vehicle wiring, using the factory USCAR socket. They connect the taillights, brake lights, turn signals, reverse lights, electric trailer brakes and aux power.
  • USCAR-SPECIFIC. This trailer wiring harness socket is designed for specific vehicles with an industry-standard USCAR socket.
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this dual 7-pin and 4-pin trailer wiring socket is made from durable black plastic that will never rust or corrode.
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CURT 58060 Trailer-Side 4-Pin Round Wiring Harness Plug

  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer wiring plug. It features tabs on the....
  • VERSATILE DESIGN. This trailer wiring connector makes a great replacement 4-flat wiring plug. It matches industry-standard 4-way round connectors and....
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this 4-pin trailer wiring connector is made from strong, durable....
  • RELIABLE CONNECTION. This 4-way round trailer wiring plug is equipped with a locking tab on top that secures the plug into the socket when inserted.....
  • WEATHER-RESISTANT. To help protect the splice-in wiring connections, this 4-wire trailer plug features concealed terminals, keeping the wires from....
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CURT 58061 Trailer-Side 4-Pin Round Wiring Harness Plug

  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer wiring plug. It features tabs on the....
  • VERSATILE DESIGN. This trailer wiring connector makes a great replacement 4-flat wiring plug. It matches industry-standard 4-way round connectors and....
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of this 4-pin trailer wiring connector is made from strong, durable....
  • RELIABLE CONNECTION. This 4-way round trailer wiring plug is equipped with a locking tab on top that secures the plug into the socket when inserted.....
  • WEATHER-RESISTANT. To help protect the splice-in wiring connections, this 4-wire trailer plug features concealed terminals, keeping the wires from....
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CURT 58671 Vehicle-Side and Trailer-Side 4-Pin Round Wiring Harness Connectors

  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of these trailer wiring connectors. The trailer plug....
  • VERSATILE DESIGN. These trailer wiring connectors make great replacement 4-flat wiring plugs and socket. They match industry-standard 4-way round....
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of these 4-pin trailer wiring connectors is made from strong,....
  • RELIABLE CONNECTION. These 4-way round trailer wiring connectors are equipped with locking tabs that secure the plug into the socket when inserted.....
  • WEATHER-RESISTANT. To help protect the splice-in wiring connections, these 4-wire trailer plugs feature concealed terminals, keeping the wires from....
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CURT 58677 Vehicle-Side and Trailer-Side 4-Pin Round Wiring Harness Connectors

  • EASY GRIP. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of these trailer wiring connectors. The trailer plug....
  • VERSATILE DESIGN. These trailer wiring connectors make great replacement 4-flat wiring plugs and socket. They match industry-standard 4-way round....
  • DURABLE CONSTRUCTION. For long-lasting use and a reliable connection, the housing of these 4-pin trailer wiring connectors is made from strong,....
  • RELIABLE CONNECTION. These 4-way round trailer wiring connectors are equipped with locking tabs that secure the plug into the socket when inserted.....
  • WEATHER-RESISTANT. To help protect the splice-in wiring connections, these 4-wire trailer plugs feature concealed terminals, keeping the wires from....
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