2011 GMC Terrain Trailer Wiring

Keep Your 2011 GMC Terrain in Top Shape with a Quality Trailer Wiring

When it comes to maintaining or upgrading your 2011 GMC Terrain, choosing high-quality parts is crucial for ensuring your vehicle stays in top shape, whether you’re tackling a repair or enhancing performance. At Advance Auto Parts, we know how important it is to find the right Trailer Wiring for your Terrain. We currently carry a top Trailer Wiring in stock that is built to last. Whether you’re replacing a damaged Trailer Wiring or looking to upgrade, our selection for the 2011 GMC Terrain ensures you’ll find exactly what you need to keep your vehicle looking and performing its best.

Explore Related Parts

And while you’re here, don’t forget to check out related part categories like Trailer Hitches to complete your upgrade or repair project. At Advance Auto Parts, we’re proud to offer the parts and expertise to keep your 2011 GMC Terrain running smoothly and looking great.

Essential 2011 GMC Terrain Trailer Wiring

Hopkins – 40920, Endurance Multi Tow« GM Twist Mount 7 Blade and 4 Flat Towing Connector (Part No.40920)

40920, Endurance Multi Tow« GM Twist Mount 7 Blade and 4 Flat Towing Connector

from

$35.99
By incorporating Endurance design features that include oversized hinges, internal grommets for enhanced weather proofing and a lid that opens 180 degrees, this connector is guaranteed to last for years of trouble free use. Multi-Tow® design feature adds multiple towing options from one connector by providing sockets for towing both 7 blade and 4 flat trailers. This connector is Plug-In Simple!® with no cutting or splicing, saving you time by utilizing an OEM connector to create an exact fit for easy installation and maximum weatherproofing. Easy twist-mount installation requires no tools.

Product Features:
  • Endurance Professional Grade
  • Plug-In Simple!® Wiring Kit
  • Utilizes OEM connectors create an exact fit and maximum weatherproofing
  • Multi-Tow® provides multiple towing options from one connector
  • Weatherproof lid opens 180 degrees
  • Oversized hinge offers ultimate durability
  • Superior Ergonomics
  • For Use w/Factory Tow Package
  • Impact And Corrosion Resistant
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Hopkins – 40930, Endurance GM Twist Mount 7 Blade Towing Connector (Part No.40930)

40930, Endurance GM Twist Mount 7 Blade Towing Connector

from

$23.99
By incorporating Endurance design features that include oversized hinges, internal grommets for enhanced weather proofing and a lid that opens 180 degrees, this connector is guaranteed to last for years of trouble free use. This connector is Plug-In Simple!® with no cutting or splicing, saving you time by utilizing an OEM connector to create an exact fit for easy installation and maximum weatherproofing. Easy twist-mount installation requires no tools.

Product Features:
  • Endurance Professional Grade
  • Plug-In Simple!® Wiring Kit
  • Utilizes OEM connectors create an exact fit and maximum weatherproofing
  • Corrosion resistant terminals
  • Weatherproof lid opens 180 degrees
  • Oversized hinge offers ultimate durability
  • Superior Ergonomics
See More

Hopkins – 40950, Endurance Multi Tow« Ford / GM 7 Blade and 4 Flat Towing Connector (Part No.40950)

40950, Endurance Multi Tow« Ford / GM 7 Blade and 4 Flat Towing Connector

from

$37.99
By incorporating Endurance design features that include oversized hinges, internal grommets for enhanced weather proofing and a lid that opens 180 degrees, this connector is guaranteed to last for years of trouble free use. Multi-Tow® design feature adds multiple towing options from one connector by providing sockets for towing both 7 blade and 4 flat trailers. This connector is Plug-In Simple!® with no cutting or splicing, saving you time by utilizing an OEM connector to create an exact fit for easy installation and maximum weatherproofing. Four hole mount installation for standard mounting brackets.

Product Features:
  • Endurance Professional Grade
  • Plug-In Simple!® Wiring Kit
  • Utilizes OEM connectors create an exact fit and maximum weatherproofing
  • Multi-Tow® provides multiple towing options from one connector
  • Weatherproof lid opens 180 degrees
  • Oversized hinge offers ultimate durability
  • Superior Ergonomics
  • For Use w/Factory Tow Package
  • Impact And Corrosion Resistant
See More

Hopkins – 40974, Multi-Tow® Exact Fit OEM replacement 7 Blade and 4 Flat Towing Connector (Part No.40974)

40974, Multi-Tow® Exact Fit OEM replacement 7 Blade and 4 Flat Towing Connector

from

$41.99
Tow more than one trailer? This exact OEM replacement Multi-Tow® design features multiple towing options from one connector by providing sockets for towing both 7 blade and 4 flat trailers. This connector is Plug-In Simple!® with no cutting or splicing, saving you time by utilizing an OEM connector to create an exact fit for easy installation and maximum weatherproofing.

Product Features:
  • Multi-Tow® provides multiple towing options from one connector
  • Plug-In Simple!® Wiring Kit
  • Utilizes OEM connectors create an exact fit and maximum weatherproofing
  • Impact and corrosion resistant
  • Pre-greased terminals for added protection
  • Includes Step-By-Step Instructions
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CURT – Custom Wiring Harness (5-Way Flat Output) (Part No.56594)

Custom Wiring Harness (5-Way Flat Output)

from

$66.99
A CURT custom wiring harness (also 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 harnesses come into play. Custom wiring harnesses plug into your vehicle’s electrical system using original equipment (OEM) connectors. Our custom wiring harnesses use two or more OEM connectors to plug in at the taillight assembly and provide a standard trailer socket to allow a trailer to be plugged into your vehicle’s power system. This harness provides a 5-way flat connector socket and is designed to be a custom wiring harness for certain years of the GMC Terrain or Chevrolet Equinox (to verify your vehicle compatibility, see the CURT application guide at curtmfg.com). CURT custom wiring harnesses are long-lasting and quick to install. They come with dust covers to keep your connector clean when not in use and feature a one-year limited warranty to give you peace of mind.

Product Features:
  • Plugs into vehicle tail light assembly to provide a 5-way flat socket
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • 5-way flat connects tail lights, brake lights, turn signals and reverse lights
  • Dust cover included to keep connector clean when not in use
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Carquest Premium – Trailer Connector Kit (Part No.TCC1255)

Trailer Connector Kit

from

$62.99
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.

Product Features:
  • Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
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CURT – Custom Towed-Vehicle RV Wiring Harness (Part No.58900)

Custom Towed-Vehicle RV Wiring Harness

from

$92.99
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 Chevrolet Equinox and GMC Terrain. 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.

Product Features:
  • Connects a towed vehicle to an RV using a standard 4-way flat trailer plug
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • Integrated block diodes isolate sensitive vehicle electronics from RV signals
  • Uses towed vehicle’s existing taillights, brake lights and turn signals
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Most Popular Trailer Wiring Kit for 2011 GMC Terrains

Enhance your 2011 GMC Terrain with this popular Trailer Wiring Kit we have in stock, for $92.99.

CURT – Custom Towed-Vehicle RV Wiring Harness (Part No.58900)

Custom Towed-Vehicle RV Wiring Harness

from

$92.99
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 Chevrolet Equinox and GMC Terrain. 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.

Product Features:
  • Connects a towed vehicle to an RV using a standard 4-way flat trailer plug
  • Simple plug-and-play design eliminates the need for cutting or splicing
  • Integrated block diodes isolate sensitive vehicle electronics from RV signals
  • Uses towed vehicle’s existing taillights, brake lights and turn signals
See More

FAQs for 2011 GMC Terrain Trailer Wirings

What’s the price range for 2011 GMC Terrain Trailer Wiring?

We currently have just one Trailer Wiring for the 2011 GMC Terrain in stock: Custom Towed-Vehicle RV Wiring Harness and it costs $92.99.

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

Yes, we carry Trailer Wiring for 13 model years of GMC Terrains between 2010 and 2024. The following model years are the most popular for Trailer Wiring purchases: 2023, 2022, 2021, 2020, 2019, 2018, 2017, 2016, and 2015.

Does Advance Auto Parts sell Trailer Wiring for any other 2011 GMC models?

Yes. We stock Trailer Wiring for 11 other popular 2011 GMC models. Some of the most popular are 2011 Yukon Trailer Wiring, 2011 Sierra 1500 Trailer Wiring, 2011 Yukon XL 1500 Trailer Wiring, 2011 Sierra 2500 HD Trailer Wiring, and 2011 Yukon XL 2500 Trailer Wiring.

What types of Trailer Wiring do you sell for my 2011 GMC Terrain?

We currently have just 1 Trailer Wiring in stock for a 2011 GMC Terrain, and as of 11/2/25, it is a Trailer Wiring Kit.

Can I get help with 2011 GMC Terrain 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 Terrain Trailer Wiring?

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