Top 10 7-Way Trailer Wiring Electrical Adapter By CURT – Towing Hitch Wiring

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1. CURT

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CURT 57240 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter

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CURT #ad - It features tabs on the sides for a better grip when plugging into the vehicle or unplugging. Durable construction. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer wiring adapter.

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. Versatile design. Standard connection. Easy grip. No-splice install. This 7-pin to 4-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with zero splicing required.

This trailer hitch wiring adapter plugs into any standard 7-way RV blade and can be used to connect the taillights, brake lights and turn signals. This trailer wiring adapter makes it easy to connect a mismatched vehicle socket and trailer plug, adapting your 7-way RV blade socket connector on your vehicle into a standard 4-way flat.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length4 Inches
Weight0.15 Pounds
Width3 Inches
Part Number57240
Model57240
WarrantyOne-Year Limited Warranty

2. CURT

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CURT 57004 LED-Compatible 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer-Side Trailer Wiring Adapter

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CURT #ad - Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer wiring adapter. No-splice install. This trailer hitch wiring adapter plugs into any standard 7-way RV blade and enables the vehicle to recognize LED trailer lights.

Easy grip. Led-compatible. It features two hooks on either side of the plug for a better grip when plugging in or unplugging trailer wiring. 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. Versatile design. This trailer wiring adapter makes it easy to connect a mismatched vehicle socket and trailer plug, adapting your 7-way RV blade connector into a standard 4-way or 5-way flat socket.

It connects the taillights, turn signals, reverse lights, brake lights, trailer brakes and auxiliary power. This 7-pin to 4-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with zero splicing required.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length9 Inches
Weight0.35 Pounds
Width4 Inches
Part Number57004
Model57004
WarrantyOne-Year Limited Warranty

3. CURT

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CURT 57672 Dual-Output 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter

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CURT #ad - 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. 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.

Weather-resistant. This trailer hitch wiring adapter plugs into any standard 4-way flat and can be used to connect the taillights, reverse lights, brake lights, turn signals, trailer brakes and auxiliary power some splicing required. The wiring harness is also well-protected with the included slit loom sleeve. 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.

Versatile design. Standard connection. It also includes a mounting bracket for convenient attachment to your hitch or bumper. Easy to install. This dual-output 4-pin to 7-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with minimal splicing required. Durable construction.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length7 Inches
Weight1.1 Pounds
Width2 Inches
Part Number57672
Model57672
WarrantyOne-Year Limited Warranty

4. CURT

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CURT 57184 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter

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CURT #ad - Easy to install. Standard connection. The wiring harness is also well-protected with the included slit loom sleeve. This trailer hitch wiring adapter plugs into any standard 4-way flat and can be used to connect the taillights, turn signals, reverse lights, brake lights, trailer brakes and auxiliary power some splicing required.

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. 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 7-way RV blade socket.

Weather-resistant. Durable construction. Versatile design. This 4-pin to 7-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with minimal splicing required. This trailer wiring harness adapter comes with a spring-loaded dust cover for the 7-pin wiring socket to protect the terminals from water, dirt and corrosion.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length7 Inches
Weight0.8 Pounds
Width2 Inches
Part Number57184
Model57184
WarrantyOne-Year Limited Warranty

5. CURT

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

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CURT #ad - 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. 4-way trailer wiring is popular on a wide variety of trailers, adding versatile towing options for your vehicle.

Easy grip. Note: vehicle must already be equipped with USCAR. 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.

Standard connector. 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. 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.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height9 Inches
Length6 Inches
Weight0.71 Pounds
Width3 Inches
Part Number55384
Model55384
WarrantyOne-Year Limited Warranty

6. CURT

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Nissan, Ram, GMC, CURT 56070 7-Foot Vehicle-Side Truck Bed 7-Pin Trailer Wiring Harness Extension, Toyota, Ford, Select Chevrolet, Dodge

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CURT #ad - Easy to install. This vehicle-trailer wiring extension harness is designed for select models of Chevrolet, GMC, Ram and Toyota vehicles, Dodge, Ford, Nissan, ensuring the easiest possible installation. Truck bed extension.

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. Durable construction. This trailer wiring harness is designed to be an extension of the existing tow wiring of your truck. It retains use of the rear 7-way RV blade socket, while adding an additional 7-way socket in the truck bed.

The 7-pin trailer wire extension can be used to connect trailer taillights, reverse lights, brake lights, turn signals, electric trailer brakes and an auxiliary power wire. 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.
BrandCURT #ad
ManufacturerCURT #ad
Height4.1 Inches
Length8.7 Inches
Weight2.2 Pounds
Width8.2 Inches
Part Number56070
Model56070
WarrantyOne Year Limited

7. CURT

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CURT 57271 5-Foot 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter Extension Harness

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CURT #ad - Useful extension. Durable construction. This 7-pin to 4-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with zero splicing required. It features tabs on the sides for a better grip when plugging into the vehicle or unplugging.

No-splice install. It can be used to connect the taillights, brake lights and turn signals. This trailer hitch wiring adapter comes with a 5-foot coiled harness to provide plenty of extra length to accommodate a variety of towing setups. Versatile design. Plugging in your trailer wiring and trailer lights is easy with the ergonomic design of this trailer wiring adapter. The coiled cable also helps keep the wiring harness from scraping on the ground.

Easy grip. 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. This trailer wiring adapter makes it easy to connect a mismatched vehicle socket and trailer plug, adapting your 7-way RV blade socket connector on your vehicle into a standard 4-way flat.
BrandCURT #ad
ManufacturerCURT #ad
Height3 Inches
Length9 Inches
Weight0.95 Pounds
Width6 Inches
Part Number57271
Model57271
WarrantyOne-Year Limited Warranty

8. CURT

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CURT 57676 4-Way Flat Vehicle-Side to 7-Way RV Blade Trailer Wiring Adapter with Tester

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CURT #ad - Durable construction. This 4-pin to 7-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with minimal splicing required. 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.

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 7-way RV blade socket. This trailer wiring adapter features a built-in LED wiring tester to ensure proper functionality of your vehicle towing electrical system. Standard connection.

Easy to install. It also includes a mounting bracket for convenient attachment to your trailer hitch or bumper. Versatile design. This trailer hitch wiring adapter plugs into any standard 4-way flat and can be used to connect the taillights, turn signals, brake lights, reverse lights, trailer brakes and auxiliary power some splicing required. It also has a dust cover to protect the 7-pin wiring socket. Integrated tester.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height3 Inches
Length9 Inches
Weight0.9 Pounds
Width4 Inches
Part Number57676
Model57676
WarrantyOne-Year Limited Warranty

9. CURT

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CURT 58270 7-Pin RV Blade Trailer Wiring Towing Vehicle Socket Tester

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CURT #ad - Durable housing. For each electrical function, an led lights up indicating a good signal. Simple to use. Easy grip. Plugging in this 7-way trailer light tester into your vehicle is easy with its ergonomic design.

Just plug the wiring tester into your vehicle's socket and have a helper check the LED signals as you activate them from the driver's seat. Versatile. To produce a bright, easy-to-read signal and ensure long-lasting use, this vehicle-trailer wiring tester is constructed with LED diodes. It features two hooks on either side of the tester for a better grip when plugging in or unplugging. Long-lasting leds.

To resist the elements and maintain reliable performance, the housing of this tow wiring tester is made from durable black plastic that will never rust or corrode. Quickly and confidently confirm the functionality of your vehicle's trailer wiring harness with this connector tester for the taillights, turn signals, brake lights, reverse lights, electric trailer brakes and auxiliary power.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length5 Inches
Weight0.25 Kilograms
Width3 Inches
Part Number58270
Model58270
WarrantyLimited Lifetime

10. CURT

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CURT 57245 7-Way RV Blade Vehicle-Side to 4-Way Flat Trailer Wiring Adapter with Tester

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CURT #ad - This trailer wiring adapter makes it easy to connect a mismatched vehicle socket and trailer plug, adapting your 7-way RV blade connector into a standard 4-way flat socket. Durable construction. The dust cover also protects the 4-pin wiring socket.

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. This trailer wiring adapter features a dust cover with a built-in LED wiring tester to ensure proper functionality of your vehicle towing electrical system. Versatile design.

This trailer hitch wiring adapter plugs into any standard 7-way RV blade and can be used to connect the taillights, brake lights, turn signals, reverse lights, trailer brakes and auxiliary power. This 7-pin to 4-pin trailer adapter wiring comes ready to plug into your vehicle or trailer wiring with zero splicing required. No-splice install. Standard connection. Integrated tester.
BrandCURT #ad
ManufacturerCurt Manufacturing #ad
Height2 Inches
Length6.5 Inches
Weight0.25 Pounds
Width3 Inches
Part Number57245
Model57245
WarrantyOne Year Limited