2007 GMC Yukon Trailer Wiring

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Keep Your 2007 GMC Yukon in Top Shape with Quality Trailer Wiring

Whether you’re repairing or upgrading your Trailer Wiring, using high-quality parts is key to keeping your 2007 GMC Yukon looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Trailer Wiring Harness, Trailer Wiring Kits, and Trailer Marker Light Switch Relay. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 2007 GMC Yukon Trailer Wiring at Advance Auto Parts is around $34.78, with a range that starts at $22.99 and goes up to $49.99. With 7 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like GM Genuine Parts Multi-Purpose Relay, 15-81106, CURT Dual-Output 7/4-Way Connector (Plugs into USCAR), 55774, and CURT Replacement USCAR Socket with 24in. Wires (Vehicle Side), 56229 start at just $26.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Trailer Wiring, don’t forget to check out other key components like Trailer Brake Control Parts and Trailer Hitches. At Advance Auto Parts, we’re here to help you keep your 2007 GMC Yukon in peak condition, inside and out.

Essential 2007 GMC Yukon Trailer Wiring

CURT – CURT Dual-Output 6/4-Way Connector (Plugs into USCAR), 55664 (Part No.55664)

CURT Dual-Output 6/4-Way Connector (Plugs into USCAR), 55664

from

$49.99
A CURT custom wiring connector (sometimes called a T-connector) is a simple, plug-and-play electrical device that eliminates the need for cutting, splicing and soldering when installing vehicle-to-trailer wiring. Most vehicles do not come ready to tow. Unless your vehicle has a towing package, it is probably not equipped with a trailer wiring connector. This is where CURT’s custom wiring connectors come into play. A custom wiring connector uses a single original equipment plug to plug into a special socket provided by your vehicle. Though this option is not available on every vehicle, some automotive manufacturers design their vehicles to be easily equipped for towing by supplying a socket, integrated into the vehicle’s electrical system, to readily accept a custom wiring connector. With a CURT custom wiring connector, there is no need to tap into the taillight assembly because a special socket is already provided. This special custom wiring connector actually provides two connector sockets for a multipurpose option. It plugs into an OEM USCAR connector and offers a 4-way flat and 6-way round connector (see application info to verify fitment with your vehicle). It also comes with a mounting bracket for easy installation. CURT custom wiring connectors are designed to be long-lasting and simple to install. They come with dust covers to keep your connector clean when not in use.
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CURT – CURT Dual-Output 7/4-Way Connector (Plugs into USCAR), 55774 (Part No.55774)

CURT Dual-Output 7/4-Way Connector (Plugs into USCAR), 55774

from

$36.99
A CURT custom wiring connector (sometimes called a T-connector) is a simple, plug-and-play electrical device that eliminates the need for cutting, splicing and soldering when installing vehicle-to-trailer wiring. Most vehicles do not come ready to tow. Unless your vehicle has a towing package, it is probably not equipped with a trailer wiring connector. This is where CURT’s custom wiring connectors come into play. A custom wiring connector uses a single original equipment plug to plug into a special socket provided by your vehicle. Though this option is not available on every vehicle, some automotive manufacturers design their vehicles to be easily equipped for towing by supplying a socket, integrated into the vehicle’s electrical system, to readily accept a custom wiring connector. With a CURT custom wiring connector, there is no need to tap into the taillight assembly because a special socket is already provided. This special custom wiring connector actually provides two connector sockets for a multipurpose option. It plugs into an OEM connector and offers a 4-way flat and 7-way RV blade connector. It comes with a mounting bracket for easy installation and is designed to be a custom wiring option for a variety of vehicles (see application info to verify fitment). CURT custom wiring connectors are designed to be long-lasting and simple to install. They come with dust covers to keep your connector clean when not in use.
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CURT – CURT Replacement OE 4-Way Flat Socket (T s into USCAR), 55384 (Part No.55384)

CURT Replacement OE 4-Way Flat Socket (T s into USCAR), 55384

from

$41.99
Stress is the last thing you should feel when towing a trailer — whether you’re hauling your RV to that favorite camping destination, your ATVs up to the hunting grounds or your fishing boat to the new hidden hotspot. At CURT, we think your towing equipment should add to the enjoyment of your experience, not detract from it. CURT custom wiring connectors are the easiest way to outfit your vehicle with a CURT trailer wiring connection. They are built with some of the most advanced technology in the industry, and each one is custom-fitted to work with a specific make and model. Some automotive manufacturers install a special socket on the vehicle to be used for vehicle-to-trailer wiring. Though this special socket is not equipped on every vehicle, a CURT custom wiring connector (also called a T-connector) utilizes the socket for simple, stress-free installation. Rather than requiring you to cut, splice and solder into your vehicle’s wiring system, the custom wiring connector uses a single OEM-compatible plug and instantly provides a standard vehicle-to-trailer wiring connection, typically in the form a 4-way flat. All CURT custom wiring connectors are made vehicle-specific for the easiest possible installation and the best fit. This particular connector provides a 4-way flat socket while retaining use of the existing OEM socket. It is designed to be a custom wiring option for a variety of vehicles (see application info to verify fitment with your vehicle). It comes with a dust cover to keep the connector socket clean when not in use.
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CURT – CURT Heavy-Duty Replacement OE 7-Way RV Blade Socket (Plugs into USCAR), 55416 (Part No.55416)

CURT Heavy-Duty Replacement OE 7-Way RV Blade Socket (Plugs into USCAR), 55416

from

$22.99
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. This 7-way RV blade connector is designed to plug into a USCAR socket and supply power for tail lights, turn signals, electric trailer brakes, a 12-volt battery, reverse lights and brake lights, as well as a ground connection. It is intended to be a replacement trailer wiring connector, plugging into a standard USCAR socket (see application info to verify fitment with your vehicle). It features rust-free black plastic construction and comes with a spring-loaded cover to keep out dust and water. This 7-way RV blade connector is a female-end socket, specifically designed for the vehicle side of the connection (see application info to verify fitment with your vehicle).
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CURT – CURT Replacement OE 7-Way RV Blade Socket (Plugs into USCAR), 55415 (Part No.55415)

CURT Replacement OE 7-Way RV Blade Socket (Plugs into USCAR), 55415

from

$22.99
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. This 7-way RV blade connector is designed to plug into a USCAR socket and supply power for tail lights, turn signals, electric trailer brakes, a 12-volt battery, reverse lights and brake lights, as well as a ground connection. It is intended to be a replacement trailer connector, plugging into a standard USCAR socket (see application info to verify fitment with your vehicle). It features rust-free black plastic construction and comes with a spring-loaded cover to keep out dust and water. This 7-way RV blade connector is a female-end socket, specifically designed for the vehicle side of the connection.
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CURT – CURT Custom Wiring Harness (4-Way Flat Output), 55319 (Part No.55319)

CURT Custom Wiring Harness (4-Way Flat Output), 55319

from

$27.99
If your vehicle is not equipped with wiring for towing a trailer, CURT custom wiring is the ideal solution. A custom wiring harness — also called a T-connector — is a simple, plug-and-play electrical device that plugs into your automotive electric system and provides a standard, universal trailer wiring connection. This is done using two or more vehicle-specific, OEM-compatible connectors to plug into the taillight assembly, eliminating the need for cutting, splicing and soldering during installation. Custom wiring harnesses are made vehicle-specific, and while they are not available for all vehicles, they do offer one of the fastest, easiest and most secure ways to wire a vehicle for towing. This particular plug-in harness provides a 4-way flat connector socket and is designed to be a custom wiring harness to fit certain years of the Chevy Blazer, C1500 Suburban, C2500 Suburban, K1500 Suburban, K2500 Suburban, Tahoe, GMC C1500 Suburban, C2500 Suburban, K1500 Suburban, K2500 Suburban, Yukon, Yukon XL 1500, Yukon XL 2500 and Cadillac Escalade (to verify your vehicle compatibility, see application info). It comes with all necessary wiring components to establish a reliable trailer wiring connection, as well as a dust cover to keep the connector clean when not in use. You have a picture in mind of your next destination — maybe it’s the boat landing at your favorite fishing spot, maybe it’s a campsite that overlooks one of nature’s masterpieces, or maybe it’s the next big jobsite. However, turning that picture into a reality takes more than just daydreaming. It takes a solid connection and the right amount of power. CURT custom wiring is made with some of the most sophisticated technology in the industry and is designed to install with ease, giving you a long-lasting electrical connection for your towing hitch setup.
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CURT – CURT Replacement USCAR Socket with 24in. Wires (Vehicle Side), 56229 (Part No.56229)

CURT Replacement USCAR Socket with 24in. Wires (Vehicle Side), 56229

from

$26.99
“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. This 7-way USCAR replacement harness is designed to replace an existing USCAR plug and supply power for tail lights, turn signals, electric trailer brakes, a battery, reverse lights and brake lights, as well as a ground connection. It features rust-free black plastic construction and comes with color-coded wires and 24″” of bonded wire for easy splicing into your vehicle’s wiring system. This 7-way USCAR connector is a female-end socket, specifically designed for the vehicle side of the connection.”
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CURT – CURT Custom Towed-Vehicle RV Wiring Harness, Select Cadillac Escalade, GMC Yukon, XL, 58965 (Part No.58965)

CURT Custom Towed-Vehicle RV Wiring Harness, Select Cadillac Escalade, GMC Yukon, XL, 58965

from

$129.99
Towing your vehicle behind your RV is a great way to experience more of the adventure on your cross-country excursions. Whether you’re towing a compact car or a full-size truck, CURT has the perfect solution to help you Bring It! CURT towed-vehicle RV harnesses are a vehicle-specific, plug-and-play solution to wiring your vehicle for dinghy towing. They use original-equipment-compatible connectors to plug into your vehicle’s wiring system without any cutting, splicing or soldering required. They provide a standard 4-way flat connector to plug into the RV socket and synchronize the vehicle’s tail lights, turn signals and brake lights with the RV’s. Because each towed-vehicle RV harness has a vehicle-specific design, installation is fast and easy. This particular RV dinghy towing wiring harness is designed for specific years of the Cadillac Escalade, GMC Yukon and Yukon XL (see application info to verify fitment). CURT RV harnesses are also built to provide long-lasting operation. They feature integrated block diodes that protect the vehicle’s circuits from the RV signals. They isolate the sensitive vehicle electronics, keeping them from overheating and short circuiting. Every CURT towed-vehicle RV harness comes ready to install with all necessary hardware included. They also come with a 4-way flat extension to provide plenty of length to plug into the RV socket, as well as a connector mounting bracket to mount the connector on the vehicle.
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Carquest Premium – Carquest Trailer Connector Kit, TCA1452 (Part No.TCA1452)

Carquest Trailer Connector Kit, TCA1452

from

$20.79
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
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GM Genuine Parts – GM Genuine Parts Multi-Purpose Relay, 15-81106 (Part No.15-81106)

GM Genuine Parts Multi-Purpose Relay, 15-81106

from

$41.49
GM Genuine Parts Wiring Relays are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These relays help connect or disconnect power to a vehicle accessory when it receives a low voltage signal from a switch. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
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Most Popular Trailer Wiring Harness for 2007 GMC Yukons

Enhance your 2007 GMC Yukon with one of the 2 Trailer Wiring Harness we have in stock, starting at just $36.99.

CURT – CURT Dual-Output 7/4-Way Connector (Plugs into USCAR), 55774 (Part No.55774)

CURT Dual-Output 7/4-Way Connector (Plugs into USCAR), 55774

from

$36.99
A CURT custom wiring connector (sometimes called a T-connector) is a simple, plug-and-play electrical device that eliminates the need for cutting, splicing and soldering when installing vehicle-to-trailer wiring. Most vehicles do not come ready to tow. Unless your vehicle has a towing package, it is probably not equipped with a trailer wiring connector. This is where CURT’s custom wiring connectors come into play. A custom wiring connector uses a single original equipment plug to plug into a special socket provided by your vehicle. Though this option is not available on every vehicle, some automotive manufacturers design their vehicles to be easily equipped for towing by supplying a socket, integrated into the vehicle’s electrical system, to readily accept a custom wiring connector. With a CURT custom wiring connector, there is no need to tap into the taillight assembly because a special socket is already provided. This special custom wiring connector actually provides two connector sockets for a multipurpose option. It plugs into an OEM connector and offers a 4-way flat and 7-way RV blade connector. It comes with a mounting bracket for easy installation and is designed to be a custom wiring option for a variety of vehicles (see application info to verify fitment). CURT custom wiring connectors are designed to be long-lasting and simple to install. They come with dust covers to keep your connector clean when not in use.
See More

CURT – CURT Dual-Output 6/4-Way Connector (Plugs into USCAR), 55664 (Part No.55664)

CURT Dual-Output 6/4-Way Connector (Plugs into USCAR), 55664

from

$49.99
A CURT custom wiring connector (sometimes called a T-connector) is a simple, plug-and-play electrical device that eliminates the need for cutting, splicing and soldering when installing vehicle-to-trailer wiring. Most vehicles do not come ready to tow. Unless your vehicle has a towing package, it is probably not equipped with a trailer wiring connector. This is where CURT’s custom wiring connectors come into play. A custom wiring connector uses a single original equipment plug to plug into a special socket provided by your vehicle. Though this option is not available on every vehicle, some automotive manufacturers design their vehicles to be easily equipped for towing by supplying a socket, integrated into the vehicle’s electrical system, to readily accept a custom wiring connector. With a CURT custom wiring connector, there is no need to tap into the taillight assembly because a special socket is already provided. This special custom wiring connector actually provides two connector sockets for a multipurpose option. It plugs into an OEM USCAR connector and offers a 4-way flat and 6-way round connector (see application info to verify fitment with your vehicle). It also comes with a mounting bracket for easy installation. CURT custom wiring connectors are designed to be long-lasting and simple to install. They come with dust covers to keep your connector clean when not in use.
See More

Best-Selling 2007 GMC Yukon Trailer Wiring Kits

Upgrade your Yukon with one of our 4 best-selling Trailer Wiring Kits.

CURT – CURT Replacement USCAR Socket with 24in. Wires (Vehicle Side), 56229 (Part No.56229)

CURT Replacement USCAR Socket with 24in. Wires (Vehicle Side), 56229

from

$26.99
“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. This 7-way USCAR replacement harness is designed to replace an existing USCAR plug and supply power for tail lights, turn signals, electric trailer brakes, a battery, reverse lights and brake lights, as well as a ground connection. It features rust-free black plastic construction and comes with color-coded wires and 24″” of bonded wire for easy splicing into your vehicle’s wiring system. This 7-way USCAR connector is a female-end socket, specifically designed for the vehicle side of the connection.”
See More

CURT – CURT Replacement OE 4-Way Flat Socket (T s into USCAR), 55384 (Part No.55384)

CURT Replacement OE 4-Way Flat Socket (T s into USCAR), 55384

from

$41.99
Stress is the last thing you should feel when towing a trailer — whether you’re hauling your RV to that favorite camping destination, your ATVs up to the hunting grounds or your fishing boat to the new hidden hotspot. At CURT, we think your towing equipment should add to the enjoyment of your experience, not detract from it. CURT custom wiring connectors are the easiest way to outfit your vehicle with a CURT trailer wiring connection. They are built with some of the most advanced technology in the industry, and each one is custom-fitted to work with a specific make and model. Some automotive manufacturers install a special socket on the vehicle to be used for vehicle-to-trailer wiring. Though this special socket is not equipped on every vehicle, a CURT custom wiring connector (also called a T-connector) utilizes the socket for simple, stress-free installation. Rather than requiring you to cut, splice and solder into your vehicle’s wiring system, the custom wiring connector uses a single OEM-compatible plug and instantly provides a standard vehicle-to-trailer wiring connection, typically in the form a 4-way flat. All CURT custom wiring connectors are made vehicle-specific for the easiest possible installation and the best fit. This particular connector provides a 4-way flat socket while retaining use of the existing OEM socket. It is designed to be a custom wiring option for a variety of vehicles (see application info to verify fitment with your vehicle). It comes with a dust cover to keep the connector socket clean when not in use.
See More

CURT – CURT Heavy-Duty Replacement OE 7-Way RV Blade Socket (Plugs into USCAR), 55416 (Part No.55416)

CURT Heavy-Duty Replacement OE 7-Way RV Blade Socket (Plugs into USCAR), 55416

from

$22.99
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. This 7-way RV blade connector is designed to plug into a USCAR socket and supply power for tail lights, turn signals, electric trailer brakes, a 12-volt battery, reverse lights and brake lights, as well as a ground connection. It is intended to be a replacement trailer wiring connector, plugging into a standard USCAR socket (see application info to verify fitment with your vehicle). It features rust-free black plastic construction and comes with a spring-loaded cover to keep out dust and water. This 7-way RV blade connector is a female-end socket, specifically designed for the vehicle side of the connection (see application info to verify fitment with your vehicle).
See More

CURT – CURT Replacement OE 7-Way RV Blade Socket (Plugs into USCAR), 55415 (Part No.55415)

CURT Replacement OE 7-Way RV Blade Socket (Plugs into USCAR), 55415

from

$22.99
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. This 7-way RV blade connector is designed to plug into a USCAR socket and supply power for tail lights, turn signals, electric trailer brakes, a 12-volt battery, reverse lights and brake lights, as well as a ground connection. It is intended to be a replacement trailer connector, plugging into a standard USCAR socket (see application info to verify fitment with your vehicle). It features rust-free black plastic construction and comes with a spring-loaded cover to keep out dust and water. This 7-way RV blade connector is a female-end socket, specifically designed for the vehicle side of the connection.
See More

Top-Quality Trailer Marker Light Switch Relay for 2007 GMC Yukons

Choose a high-quality OEM or aftermarket Trailer Marker Light Switch Relay for GMC Yukons and enjoy top-notch performance from $41.49.

GM Genuine Parts – GM Genuine Parts Multi-Purpose Relay, 15-81106 (Part No.15-81106)

GM Genuine Parts Multi-Purpose Relay, 15-81106

from

$41.49
GM Genuine Parts Wiring Relays are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These relays help connect or disconnect power to a vehicle accessory when it receives a low voltage signal from a switch. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
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FAQs for 2007 GMC Yukon Trailer Wirings

What are the best-selling Trailer Wirings for 2007 GMC Yukons?

Out of 7 Trailer Wirings that fit 2007 GMC Yukons, the following parts are the top sellers:

What’s the price range for 2007 GMC Yukon Trailer Wiring?

The prices of Trailer Wiring for the 2007 GMC Yukon range from $22.99 up to $49.99 for the most premium parts.

What is the average price of a Trailer Wiring for a 2007 GMC Yukon?

The average price for Trailer Wirings for the 2007 GMC Yukon is $34.78. Keep in mind the variety of part types within our Trailer Wiring category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Trailer Wiring for other GMC Yukon model years?

Yes, we carry Trailer Wiring for 33 model years of GMC Yukons between 1992 and 2026. The following model years are the most popular for Trailer Wiring purchases: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

What are the cheapest Trailer Wiring for my 2007 GMC Yukon?

Does Advance Auto Parts sell Trailer Wiring for any other 2007 GMC models?

Yes. We stock Trailer Wiring for 19 other popular 2007 GMC models. Some of the most popular are 2007 Sierra 1500 Trailer Wiring, 2007 Yukon XL 1500 Trailer Wiring, 2007 Sierra 2500 HD Trailer Wiring, 2007 Yukon XL 2500 Trailer Wiring, and 2007 Savana 1500 Trailer Wiring.

What types of Trailer Wiring do you sell for my 2007 GMC Yukon?

As of 8/2/26, these are some of the most in-demand types of Trailer Wiring for a 2007 GMC Yukon:

Can I get help with 2007 GMC Yukon Trailer Wiring orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Trailer Wiring and more.

What is your return policy for GMC Yukon Trailer Wiring?

Advance Auto Parts keeps returns simple. For new GMC Yukon Trailer Wiring and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.