Top 10 4-Pin Trailer Wiring Harness – Automotive Replacement Electrical Wiring Harnesses

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1. CURT

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CURT 55384 Replacement Vehicle-Side Custom USCAR 4-Pin Trailer Wiring Harness

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CURT #ad - 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. It features a tab on top for a better grip when plugging into your trailer or unplugging.

Durable construction. 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. The 4-flat trailer wiring can be used to connect trailer taillights, brake lights and turn signals. Standard connector. 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.

Uscar-specific. Note: vehicle must already be equipped with USCAR. 4-way trailer wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle. Easy to install. Easy grip. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this vehicle socket.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height9 Inches
Length6 Inches
Weight0.71 Pounds
Width3 Inches
Part Number55384
Model55384
WarrantyOne-Year Limited Warranty

2. CURT

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Hilux, Select Toyota Tacoma, T100, CURT 55513 Vehicle-Side Custom 4-Pin Trailer Wiring Harness

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CURT #ad - It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover.

Dust cover. Reliable power. Standard connector. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. This type of circuitry generates less heat, optimal light intensity and durable performance. Easy to install. No cutting! no splicing! this trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer.

4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Toyota Tacoma, T100 and Hilux. Vehicle-specific. This 4-way trailer wiring harness is built with surface mount technology.
BrandCURT #ad
ManufacturerCURT #ad
Height3 Inches
Length9 Inches
Weight0.9 Pounds
Width4 Inches
Part Number55513
Model55513
WarrantyOne-Year Limited Warranty

3. CURT

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Select Toyota RAV4, CURT 56434 Vehicle-Side Custom 4-Pin Trailer Wiring Harness

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CURT #ad - It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor, exterior elements and internal corrosion. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover.

This aftermarket, vehicle-trailer wiring harness is designed for select years of the Toyota RAV4. Dust cover. Reliable power. 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle. This ensures the easiest possible installation and the most reliable wiring connection. This 4-way trailer wiring harness is built with surface mount technology. No cutting! no splicing! this trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer or accessories.

This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. Easy to install. Vehicle-specific. This type of circuitry generates less heat, optimal light intensity and durable performance. Standard connector.
BrandCURT #ad
ManufacturerCURT #ad
Height2 Inches
Length7 Inches
Weight1.38 Pounds
Width2 Inches
Part Number56434
Model56434
WarrantyOne-Year Limited Warranty

4. Curt Manufacturing

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CURT 56165 Vehicle-Side Custom 4-Pin Trailer Wiring Harness for Select Toyota RAV4

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Curt Manufacturing #ad - The 4-flat trailer wiring can be used to connect trailer taillights, brake lights and turn signals. Easy to install. To promote long-lasting use and weather resistance, this 4-pin trailer wiring harness comes with a rubber dust cover.

Reliable power. No cutting! no splicing! this trailer wiring harness plugs into existing factory wiring on your vehicle and equips it with a standard 4-pin trailer wiring connector for plugging in and towing a trailer. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements and internal corrosion. This vehicle-trailer wiring harness is designed for select models of the Toyota RAV4, ensuring the easiest possible installation and the most reliable wiring connection.

Dust cover. Turn and Brake Circuits-7. 5 amps. Electrical System Type: 3W. This 4-way trailer wiring harness is built with surface mount technology. This type of circuitry generates less heat, optimal light intensity and durable performance. Vehicle-specific. 4-way trailer wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle.
BrandCurt Manufacturing #ad
ManufacturerCurt Manufacturing #ad
Height3 Inches
Length9 Inches
Weight1.47 Pounds
Width6 Inches
Part Number56165
Model56165
WarrantyLimited Lifetime

5. CURT

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CURT 56310 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Select Mazda CX-5

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CURT #ad - 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle. Reliable power. Standard connector. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals.

Dust cover. Easy to install. Vehicle-specific. This 4-way trailer wiring harness is built with surface mount technology. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. No cutting! no splicing! this trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer.

This type of circuitry generates less heat, optimal light intensity and durable performance. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Mazda CX 5.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height3 Inches
Length9 Inches
Width6 Inches
Part Number56310
Model56310
WarrantyOne-Year Limited Warranty

6. CURT

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CURT 56096 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Select Cadillac SRX

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CURT #ad - Standard connector. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals.

Easy to install. Vehicle-specific. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. Dust cover. Easy grip. 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle. It features tabs on the top and bottom for a better grip when plugging into your trailer or unplugging. No cutting! no splicing! this trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer.

Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this vehicle socket. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Cadillac SRX factory tow package required.
BrandCURT #ad
ManufacturerCURT #ad
Height9 Inches
Length4 Inches
Weight0.5 Pounds
Width2 Inches
Part Number56096
Model56096
WarrantyOne-Year Limited Warranty

7. Curt Manufacturing

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CURT 55379 Vehicle-Side Custom 4-Pin Trailer Wiring Harness for Select Toyota Pickup Trucks, Tacoma

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Curt Manufacturing #ad - 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover.

No cutting! no splicing! this trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer or accessories. Reliable power. Dust cover. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Toyota pickup and Tacoma. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor, exterior elements and internal corrosion.

This type of circuitry generates less heat, optimal light intensity and durable performance. Vehicle-specific. Easy to install. Standard connector. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. This ensures the easiest possible installation and the most reliable wiring connection. This 4-way trailer wiring harness is built with surface mount technology.
BrandCurt Manufacturing #ad
ManufacturerCurt Manufacturing #ad
Height3 Inches
Length9 Inches
Weight0.95 Pounds
Width4 Inches
Part Number55379
Model55379
WarrantyOne-Year Limited Warranty

8. CURT

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CURT 58050 Vehicle-Side and Trailer-Side 4-Pin Flat Wiring Harness with 72-Inch Wires

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CURT #ad - The 4-pin wiring design matches industry-standard 4-way flat connectors and is compatible with a wide variety of trailers. They can be used to connect the taillights, brake lights and turn signals. These 4-pin trailer wiring plugs come ready to splice into your existing vehicle and trailer wiring.

Reliable connection. They feature tabs on the top and bottom for a better grip when plugging in or unplugging. The 72-inch wire loop provides plenty of extra length for a flexible installation. Equipped with color-coded wires, these 4-prong trailer wiring connectors come ready to install. Durable construction. For long-lasting use and a reliable connection, the housing of these 4-pin trailer wiring plugs is made from durable black molded rubber that will never rust or corrode.

These vehicle-trailer connectors make great replacement 4-flat wiring plugs and sockets. Ready to install. Versatile design. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of these vehicle-trailer connectors. Easy grip.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length7 Inches
Weight0.3 Pounds
Width2 Inches
Part Number58050
Model58050
WarrantyLimited Lifetime

9. SUZCO

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SUZCO 25 Foot 4 Wire 4-Flat Trailer Light Wiring Harness Extension Kit, 4-Way Plug 4 Pin Male & Female Extension Connector & Wishbone-Style with 18 Gauge White Ground Wire with SAE J1128

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SUZCO #ad - This trailer wire harness kit also can work on an aluminum trailer based on the ground wire. This trailer wire harness kit is completely sealed for a long corrosion-resistant installation. The 4 flat trailer wire is color-coded and bonded wire to easily splice into your trailer's wiring system, no need for splicing wires.

Extension includingthis 25foot 4 wire boat trailer wiring extension can conform to the sae j1128 specification. 4-pin connectors are available allowing the basic hookup of the three lighting functions running, turn, and brake lights plus one pin is provided for a ground wire. Not compatible with motorcycle trailer wiring, and you could confirm the fitment to be not the wrong item before ordering. It can protect tow vehicle electronics from wiring shorts. Most standard light duty trailers will use a 4-pole flat connector.

Item typethis is a 25 foot male & female 4-flat marine trailer wiring harness with 4-way conductors and a white ground wire, made of 18-gauge wire, designed to split at the trailer tongue and run down each side of the trailer. 4-way connectors & fitmentyou can install the trailer wire so quickly and easily through the 4-way connectors. Includes a 4-feet trunk connector, splices, and clips. Trailer wiring harness features a ground wire. The white grounding wire is so enough long to wiring.
BrandSUZCO #ad
ManufacturerSUZCO #ad
Part NumberSUZCO888888888
Model4350429910

10. WOFTD

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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

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WOFTD #ad - Woftd 4-way trailer wiring harness with 5 ft wires 4-Pin Trailer Wiring Jacketed Cable 4 flat trailer wire Extension Connector - 5 ft. 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. 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. The 5-ft wire lead provides plenty of extra length for a flexible installation.

The trailer wiring harness perfect adapt WOFTD Trailer Plug Adapter. 4 way flat trailer wire Harness Connector Socket for Trailer Truck Hitch Wiring. We are always here to support you. Please feel free to contact us at first if there is any problem when you receive or use our products.
BrandWOFTD #ad
ManufacturerWOFTD #ad
Part NumberAT0201