Towing Electrical

There are several different types of connectors used to supply power from a tow vehicle's electrical system to a trailer's wiring system. Some trailers only need the bare essentials -- running lights, brake lights and turn signals -- while others require a connection for reverse lights, electric brakes and auxiliary power. With connectors ranging from simple to complex, it may be the case that the connection between your vehicle and your trailer is not a perfect match. For example, your truck may be equipped with a 6-way round socket, but your trailer may have a 4-way flat plug. For this very common problem, CURT offers a quick and simple solution in the form of an electrical adapter. An adapter is an electrical device that allows a connection to be made between a mismatched trailer plug and vehicle socket. It easily plugs in your vehicle's electrical socket and usually requires no additional wiring. CURT offers an array of adapters to accommodate most types of plugs and sockets, including 4-way flat, 4-way round, 5-way flat, 6-way round, 7-way RV blades and more. This electrical adapter is designed to adapt a 7-way RV blade vehicle socket to fit a 4-way flat trailer plug. It features quality plastic construction and requires no splicing. All CURT wiring and electrical products come with a one-year limited warranty to give you the assurance you need to tow with confidence.

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. Although 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, universal 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 plug-in connector provides a 4-way flat socket and is designed to be a custom wiring option for certain years of the Toyota Highlander (factory tow package required; to verify your vehicle compatibility, see application info). It comes with all necessary hardware to establish a solid connection. It also comes with a dust cover to keep the connector socket clean when not in use. To ensure long-lasting reliability, all CURT custom wiring connectors are thoroughly tested for optimal functionality. 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.

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 5-way flat connector is designed to supply power for tail lights, turn signals, reverse lights and brake lights, as well as a ground connection. It features durable rubber-molded construction and is made with 72" of standard color-coded, bonded loop wire to easily splice into your vehicle's wiring system. It includes both a vehicle-end and trailer-end connector and can be cut to splice into existing wiring or left as a loop to serve as a useful extension harness. 5-way flat connectors are commonly used on boat trailers with surge brakes.

CURT automotive primary wire is engineered for dependable performance, boasting a 12-gauge, 2-wire bonded system to ensure reliable connectivity in trailer setups. With standard trailer wiring colors of black and blue, it simplifies rewiring tasks. Rated for 60 volts, it's perfect for both trailer rewiring and automotive electrical repair applications. Its robust design withstands temperatures from -40°F to 176°F, providing consistent operation in harsh environments and extreme operating conditions. Offering a substantial 250-foot length, this wire spool caters to diverse wiring needs, empowering users, whether professionals or DIY enthusiasts, to execute projects with confidence and precision for a consistently reliable electrical connection.

CURT automotive primary wire is engineered for dependable performance, boasting a 16-gauge, 4-wire bonded system to ensure reliable connectivity in trailer setups. With standard trailer wiring colors — white, brown, yellow and green — it simplifies rewiring tasks. Rated for 60 volts, it's perfect for both trailer rewiring and automotive electrical repair applications. Its robust design withstands temperatures from -40°F to 176°F, providing consistent operation in harsh environments and extreme operating conditions. Offering a substantial 250-foot length, this wire spool caters to diverse wiring needs, empowering users, whether professionals or DIY enthusiasts, to execute projects with confidence and precision for a consistently reliable electrical connection.

CURT automotive primary wire is engineered for dependable performance, boasting a 12-gauge wire thickness to ensure reliable connectivity in trailer setups. With the standard black trailer wiring color, it simplifies rewiring tasks. Rated for 60 volts, it's perfect for both trailer rewiring and automotive electrical repair applications. Its robust design withstands temperatures from -40°F to 176°F, providing consistent operation in harsh environments and extreme operating conditions. Offering a substantial 500-foot length, this wire spool caters to diverse wiring needs, empowering users, whether professionals or DIY enthusiasts, to execute projects with confidence and precision for a consistently reliable electrical connection.

CURT automotive primary wire is engineered for dependable performance, boasting a 12-gauge wire thickness to ensure reliable connectivity in trailer setups. With the standard blue trailer wiring color, it simplifies rewiring tasks. Rated for 60 volts, it's perfect for both trailer rewiring and automotive electrical repair applications. Its robust design withstands temperatures from -40°F to 176°F, providing consistent operation in harsh environments and extreme operating conditions. Offering a substantial 500-foot length, this wire spool caters to diverse wiring needs, empowering users, whether professionals or DIY enthusiasts, to execute projects with confidence and precision for a consistently reliable electrical connection.

CURT automotive primary wire is engineered for dependable performance, boasting a 12-gauge wire thickness to ensure reliable connectivity in trailer setups. With the standard red trailer wiring color, it simplifies rewiring tasks. Rated for 60 volts, it's perfect for both trailer rewiring and automotive electrical repair applications. Its robust design withstands temperatures from -40°F to 176°F, providing consistent operation in harsh environments and extreme operating conditions. Offering a substantial 500-foot length, this wire spool caters to diverse wiring needs, empowering users, whether professionals or DIY enthusiasts, to execute projects with confidence and precision for a consistently reliable electrical connection.

CURT automotive primary wire is engineered for dependable performance, boasting a 12-gauge wire thickness to ensure reliable connectivity in trailer setups. With the standard white trailer wiring color, it simplifies rewiring tasks. Rated for 60 volts, it's perfect for both trailer rewiring and automotive electrical repair applications. Its robust design withstands temperatures from -40°F to 176°F, providing consistent operation in harsh environments and extreme operating conditions. Offering a substantial 500-foot length, this wire spool caters to diverse wiring needs, empowering users, whether professionals or DIY enthusiasts, to execute projects with confidence and precision for a consistently reliable electrical connection.

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 Trax. 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.

Custom-fit 4-way trailer wiring for the Infiniti QX50. Part #56559 provides a safe, plug-and-play electrical connection.

High-quality 4-way trailer wiring harness for Acura MDX. Simple plug-and-play installation with a powered converter.

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 Acura TLX (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.

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 Acura TLX (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.

Precision-engineered 4-way wiring harness for select BMW X4 models. Non-invasive installation protects sensitive German electronics.

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 BMW X5 (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.

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 Buick Envista (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.

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 Buick Envista (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.

Connect your trailer easily with the Curt custom 4-way wiring harness for Buick Encore GX and Chevy Trailblazer. Plug-and-play installation. 1-year warranty.

Custom 4-way trailer wiring for Ford Escape, Mazda Tribute, and Mercury Mariner. Simple installation, reliable performance.

Custom 4-way trailer wiring for the Ford Maverick. Quick plug-and-play installation. 1-year warranty.

Heavy-duty 4-way wiring harness for Ford Transit 350 and 350 HD Dually. Handles commercial-grade towing needs with ease.

Connect your trailer easily with the Curt custom 4-way wiring harness for GMC Terrain. Simple installation with no cutting or splicing.

Custom-fit 4-way wiring harness for the Hyundai Kona. Plug-and-play installation provides instant trailer lighting.