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The 4-flat trailer wiring can be used to connect trailer taillights, brake lights and turn signals. Easy to install. 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. Standard connector. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this vehicle socket. 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.

The 5-flat trailer wiring can be used to connect trailer taillights, reverse lights and turn signals.
Standard connector. Easy to install. 5-way trailer wiring is popular on a wide variety of trailers, brake lights, adding versatile towing options for your vehicle. No cutting! no splicing! this trailer wiring harness Ts into an existing USCAR connection on your vehicle and equips it with a standard 5-pin trailer wiring connector for plugging in and towing a trailer.

These trailer wiring sockets come ready to plug into existing vehicle wiring, brake lights, using the factory USCAR socket. Durable construction. They connect the taillights, turn signals, reverse lights, electric trailer brakes and aux power.
Versatile design. This two-way trailer wiring socket is designed to outlast weather exposure. It provides two standard trailer wiring sockets, a 4-way flat and an RV blade 7-way round socket, allowing for versatile towing options. This trailer wiring harness socket is designed for specific vehicles with an industry-standard USCAR socket.

Uscar-specific. No cutting! no splicing! this trailer wiring harness plugs into a USCAR connection on your vehicle and equips it with a standard 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. Easy to install. The 4-flat trailer wiring can be used to connect trailer taillights, brake lights and turn signals. 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.


Heavy-duty connector. This vehicle-trailer wiring extension harness is designed for select models of Chevrolet, Dodge, GMC, Ram and Toyota vehicles, Nissan, Ford, ensuring the easiest possible installation.
Truck bed extension. Vehicle-specific. For long-lasting use and a reliable connection, the housing of the 7-pin truck wiring socket is made from durable molded black plastic and has a spring-loaded dust cover to protect the connection points. This trailer wiring harness is designed to be an extension of the existing tow wiring of your truck.

This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover.
This 4-way trailer wiring harness is built with surface mount technology. Vehicle-specific. 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. Reliable power. Easy to install. 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 plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. Reliable power. Dust cover. This 4-way trailer wiring harness is built with surface mount technology. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle. Easy to install. Vehicle-specific.

Standard connector. 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle. Dust cover.
Vehicle-specific. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements. Reliable power. Easy to install. This 4-way trailer wiring harness is built with surface mount technology. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals.
1. CURT
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Black, CURT 55384 Replacement Vehicle-Side Custom USCAR 4-Pin Trailer Wiring Harness
#adCURT #ad - 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. 4-way trailer wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle.The 4-flat trailer wiring can be used to connect trailer taillights, brake lights and turn signals. Easy to install. 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.
More information #ad
Easy grip. Durable construction. Uscar-specific. Note: vehicle must already be equipped with USCAR. It features a tab on top for a better grip when plugging into your trailer or unplugging. Standard connector. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this vehicle socket. 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.
Brand | CURT #ad |
Manufacturer | Curt Manufacturing #ad |
Height | 9 Inches |
Length | 6 Inches |
Weight | 0.71 Pounds |
Width | 3 Inches |
Part Number | 55384 |
Model | 55384 |
Warranty | One-Year Limited Warranty |
More information #ad
2. CURT
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CURT 56584 Replacement Vehicle-Side Custom USCAR 5-Pin Trailer Wiring Harness , Black
#adCURT #ad - For long-lasting use and a reliable connection, the housing of the 5-pin vehicle wiring socket is made from durable black molded rubber that will never rust or corrode. 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.The 5-flat trailer wiring can be used to connect trailer taillights, reverse lights and turn signals.
More information #ad
Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this vehicle socket. Durable construction. Easy grip. It features a tab on top for a better grip when plugging into your trailer or unplugging. Standard connector. Easy to install. 5-way trailer wiring is popular on a wide variety of trailers, brake lights, adding versatile towing options for your vehicle. No cutting! no splicing! this trailer wiring harness Ts into an existing USCAR connection on your vehicle and equips it with a standard 5-pin trailer wiring connector for plugging in and towing a trailer.
Brand | CURT #ad |
Manufacturer | Curt Manufacturing #ad |
Height | 3 Inches |
Length | 9 Inches |
Weight | 0.7 Pounds |
Width | 6 Inches |
Part Number | 56584 |
Model | 56584 |
Warranty | One-Year Limited Warranty |
More information #ad
3. CURT
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Factory Tow Package and USCAR Socket Required, 4-Pin Connectors, CURT 55774 Dual-Output Vehicle-Side 7-Pin
#adCURT #ad - Weather-resistant. 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. Reliable connection.These trailer wiring sockets come ready to plug into existing vehicle wiring, brake lights, using the factory USCAR socket. Durable construction. They connect the taillights, turn signals, reverse lights, electric trailer brakes and aux power.
More information #ad
This dual-output connector is a great upgrade for a variety of vehicles with a USCAR socket. Uscar-specific. The 7-pin socket has a spring-loaded dust cover that keeps the connection points dry and protected when not in use HUB_US: AD25. Versatile design. This two-way trailer wiring socket is designed to outlast weather exposure. It provides two standard trailer wiring sockets, a 4-way flat and an RV blade 7-way round socket, allowing for versatile towing options. This trailer wiring harness socket is designed for specific vehicles with an industry-standard USCAR socket.
Brand | CURT #ad |
Manufacturer | Curt Manufacturing #ad |
Height | 2 Inches |
Length | 9 Inches |
Weight | 1.3 Pounds |
Width | 4 Inches |
Part Number | 55774 |
Model | 55774 |
Warranty | Manufaturer warranty |
More information #ad
4. CURT
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CURT 55515 Replacement Vehicle-Side 4-Pin Connector, Factory Tow Package and USCAR Socket Required
#adCURT #ad - It features a tab on top for a better grip when plugging into your trailer or unplugging. Durable construction. Easy grip. 4-way trailer wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle.Uscar-specific. No cutting! no splicing! this trailer wiring harness plugs into a USCAR connection on your vehicle and equips it with a standard 4-pin trailer wiring connector for plugging in and towing a trailer.
More information #ad
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. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this vehicle socket. Easy to install. The 4-flat trailer wiring can be used to connect trailer taillights, brake lights and turn signals. 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.
Brand | CURT #ad |
Manufacturer | Curt Manufacturing #ad |
Height | 3 Inches |
Length | 9 Inches |
Weight | 0.43 Pounds |
Width | 4 Inches |
Part Number | 55515 |
Model | 55515 |
Warranty | One-Year Limited Warranty |
More information #ad
5. Curt Manufacturing
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F-550 Super Duty, CURT 55243 Vehicle-Side Custom RV Blade 7-Pin Trailer Wiring Harness, F-450, Fits Select Ford F-250, F-350
#adCurt Manufacturing #ad - Simple plug and play design eliminates the need for cutting or splicing. Made in USA. Comes with a dust cover to keep your connector clean when not in use. Includes converter where needed. 7-way flat output.More information #ad
Brand | Curt Manufacturing #ad |
Manufacturer | Curt Manufacturing #ad |
Height | 4 Inches |
Length | 9 Inches |
Weight | 1.15 Pounds |
Width | 8 Inches |
Part Number | 55243 |
Model | 55243 |
Warranty | One-Year Limited Warranty |
More information #ad
6. CURT
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Black, Toyota , GMC, Ram, Dodge, Select Chevrolet, Ford, CURT 56070 7-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension, Nissan
#adCURT #ad - Durable construction. No wire cutting! no splicing! this trailer wire extension plugs into existing factory wiring on your truck and has a 7-foot harness for flexible positioning in the truck bed 2-1/8-inch hole saw required for installation.Heavy-duty connector. This vehicle-trailer wiring extension harness is designed for select models of Chevrolet, Dodge, GMC, Ram and Toyota vehicles, Nissan, Ford, ensuring the easiest possible installation.
More information #ad
The 7-pin trailer wire extension can be used to connect trailer taillights, reverse lights, turn signals, brake lights, electric trailer brakes and an auxiliary power wire. Easy to install. It retains use of the rear 7-way RV blade socket, while adding an additional 7-way socket in the truck bed. Truck bed extension. Vehicle-specific. For long-lasting use and a reliable connection, the housing of the 7-pin truck wiring socket is made from durable molded black plastic and has a spring-loaded dust cover to protect the connection points. This trailer wiring harness is designed to be an extension of the existing tow wiring of your truck.
Brand | CURT #ad |
Manufacturer | CURT #ad |
Height | 4.1 Inches |
Length | 8.7 Inches |
Weight | 2.2 Pounds |
Width | 8.2 Inches |
Part Number | 56070 |
Model | 56070 |
Warranty | One Year Limited |
More information #ad
7. CURT
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Black, Fits Select Honda Pilot , CURT 56170 Vehicle-Side Custom 4-Pin Trailer Wiring Harness
#adCURT #ad - This type of circuitry generates less heat, optimal light intensity and durable performance. Standard connector. 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle.This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover.
More information #ad
This aftermarket, vehicle-trailer wiring harness is designed for select years of the Honda Pilot factory tow package required. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements. This 4-way trailer wiring harness is built with surface mount technology. Vehicle-specific. 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. Reliable power. Easy to install. Dust cover.
Brand | CURT #ad |
Manufacturer | Curt Manufacturing #ad |
Height | 3 Inches |
Length | 9 Inches |
Weight | 1.13 Pounds |
Width | 6 Inches |
Part Number | 56170 |
Model | 56170 |
Warranty | One-Year Limited Warranty |
More information #ad
8. CURT
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CURT 56229 Replacement USCAR Connector Wiring Harness, 24-Inch Wires, 7 Pin Trailer Wiring , Black
#adCURT #ad - Replaces damaged or missing USCAR vehicle harnesses. Includes 24" color-coded, bonded wires for easy installation. Retrofits weatherproof uscar-type 7-way to vehicles not equipped by using CURT part numbers 55415, 55515, 56415, 55664, 55774, 56515 or 57101. Made in USA.More information #ad
Brand | CURT #ad |
Manufacturer | Curt Manufacturing #ad |
Height | 3 Inches |
Length | 9 Inches |
Weight | 0.49 Pounds |
Width | 4 Inches |
Part Number | 56229 |
Model | 56229 |
Warranty | 1 Year |
More information #ad
9. CURT
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CURT 55513 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Hilux , T100, Select Toyota Tacoma, Black
#adCURT #ad - To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. This type of circuitry generates less heat, optimal light intensity and durable performance.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.
More information #ad
It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements. Standard connector. This aftermarket, vehicle-trailer wiring harness is designed for select years of the Toyota Tacoma, T100 and Hilux. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals. Reliable power. Dust cover. This 4-way trailer wiring harness is built with surface mount technology. 4-way trailer light wiring is popular on a variety of trailers, adding versatile towing options for your vehicle. Easy to install. Vehicle-specific.
Brand | CURT #ad |
Manufacturer | CURT #ad |
Height | 3 Inches |
Length | 9 Inches |
Weight | 0.91 Pounds |
Width | 4 Inches |
Part Number | 55513 |
Model | 55513 |
Warranty | One-Year Limited Warranty |
More information #ad
10. CURT
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Fits Select Subaru Ascent, Black, CURT 56040 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Crosstrek, XV , Outback, Forester
#adCURT #ad - 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.Standard connector. 4-way trailer light wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle. Dust cover.
More information #ad
This aftermarket, forester, vehicle-trailer wiring harness is designed for select years of the Subaru Ascent, Outback, Crosstrek and XV Crosstrek factory tow package required. To promote long-lasting use and weather resistance, this 4-pole trailer lighting wire harness comes with a rubber dust cover. Vehicle-specific. It easily fits onto the 4-way flat connector when not in use, protecting it against the outdoor elements. Reliable power. Easy to install. This 4-way trailer wiring harness is built with surface mount technology. This plug-in 4-flat trailer wiring can be used to connect trailer tail lights, brake signal lights and turn signals.
Brand | CURT #ad |
Manufacturer | Curt Manufacturing #ad |
Height | 9 Inches |
Length | 4 Inches |
Weight | 0.75 Pounds |
Width | 2 Inches |
Part Number | 56040 |
Model | 56040 |
Warranty | One Year Limited |
More information #ad