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Vehicle battery connection required
Includes fuse holder, battery connection wiring and other necessary wiring components
Includes fuse holder, battery connection wiring and other necessary wiring components
Warranty: One-Year Limited Warranty
Electrical System Type: 2W
Output Type: 4-Way Flat
Tail Light Circuits: 6.0 Amps
Turn and Brake Circuits: 3.0 Amps
Installation Difficulty: Professional
Installation Time Exact (Minutes): 30
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 Dodge Durango (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.

CURT offers a variety of high-quality trailer hitches and accessories for select vehicle models. Find the perfect fit for your towing needs at TowUniverse.
CURT, a Lippert brand, offers a complete line of towing products and is the leading manufacturer of custom-fit trailer hitches. We offer the broadest selection of custom-fit hitches, and each one is designed, welded, and coated in Wisconsin.
CURT is also a leader in flat towing products, as well as 5th wheel, gooseneck, and weight distribution hitches, ball mounts, electrical components, cargo solutions, and other towing accessories.
For everything from passenger cars and vans to full-size pickups and SUVs, CURT is 'The First Name in Towing Products®.'
Experts available to answer your questions
Call 888-634-94941 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2014 - 2026 | Dodge Durango | Installation Time: 30-60 minutes |
The CURT 56336 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Dodge Durango (Part #BKDK56336) fits 2014-2026 Dodge Durango models. The 2026 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the CURT 56336 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Dodge Durango (Part #BKDK56336) is designed to fit the 2014-2026 Dodge Durango.
The CURT 56336 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Dodge Durango (Part #BKDK56336) fits the following vehicles: 2014-2026 Dodge Durango. Always verify your specific year, make, and model before ordering.
The CURT 56336 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Dodge Durango (Part #BKDK56336) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
Yes, the Curt 56336 is designed for Dodge Durango SUVs, mini and full-sized vans (S-series). The harness connects to the vehicle's existing taillight wiring connectors behind both the driver and passenger side taillight housings.
The Curt 56336 is a custom wiring harness that provides trailer lighting connections. It includes a powered converter module that connects to your vehicle's battery and taillight circuits to supply power for trailer lights. The harness terminates in a 4-flat connector for trailer connection.
Yes, the Curt 56336 converter system is designed only for 12-volt negative ground systems. Do not use this harness on any other electrical system configuration.
A panel trim removal tool is required. You may also need a drill with a 3/32" bit if a suitable existing grounding point is not available near the taillight connector. A screwdriver may be helpful for general assembly.
Yes, you must disconnect the negative battery terminal before beginning installation. This is the first step in the installation process. Reconnect it only after all other installation steps are complete and the fuse has been installed.
After removing the taillight assemblies, locate the vehicle taillight wiring harness connectors. Separate the connectors from the taillight housing carefully to avoid damaging the locking tabs. Insert the custom wiring harness end with the green wire between the separated connectors, ensuring the connectors are fully inserted with locking tabs in place. Repeat this process on both the passenger and driver sides.
Route the custom wiring harness end with the yellow and brown wires behind the taillight and down through the opening behind the vehicle bumper. Then route them down through the opening under the taillight, over to the driver side along the backside of the bumper, and up through the opening under the driver side taillight.
Mount the black converter box on a flat spot inside the vehicle near the taillight using the provided double-sided tape. Ensure the surface is clean and suitable for adhesive mounting.
Not necessarily. First, locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame. If no suitable existing point is available, you may drill a 3/32" pilot hole for the provided screw. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
The Curt 56336 uses the following wire colors: Green for right turn signal, Red for brake, Yellow for left turn signal, and Brown for taillight. The white wire is the ground wire. These wires connect to the vehicle's existing taillight circuits through the connectors.
The battery connection must be fuse protected with a maximum 10 amp fuse. Exceeding this rating can cause loss of warranty, overheating, and potential fire. Install the fuse only after all other installation steps are complete.
Signal circuits are rated at 3.0 amps per side. Tail and running circuits are rated at 6.0 amps total. Do not exceed these product ratings or the tow vehicle lamp load rating, whichever is lower.
Use 12 gauge (12 GA) wire or larger for the power wire from the vehicle battery to the converter. Route this wire carefully to avoid pinch points and hot or rotating components.
When passing the power wire through sheet metal, use an existing grommet, add a new grommet, or use silicone to protect the power wire from sharp edges. This prevents damage to the wire insulation.
Secure the power wire to the vehicle chassis using the cable ties provided with the harness. This prevents the wire from moving or becoming damaged during vehicle operation.
When not in use, roll up the 4-flat connector and store it in a convenient, out-of-the-way location. Install the provided 4-flat dust cover to help prevent corrosion.
After installation, test for proper function by using a test light or by connecting a properly wired trailer. All steps must be followed to ensure the wiring harness functions properly.
Secure any loose wires with the provided cable ties. This prevents wires from moving, becoming damaged, or interfering with vehicle components.
Yes, you must remove both taillight assemblies. Open the vehicle tailgate and remove the two clips holding each taillight assembly in place. Carefully pry the taillights rearward, taking care not to damage the alignment tabs.
The white ground wire has a ring terminal that attaches to the vehicle body using a provided screw. Locate a suitable grounding point near the taillight connector, such as an existing screw with nut in the vehicle frame, or drill a 3/32" pilot hole if necessary. The area should be free of rust, dirt, and paint.
Yes, the Curt 56336 is designed for Dodge Durango SUVs, mini and full-sized vans (S-series). It connects to your vehicle's existing taillight wiring connectors.
You need a panel trim removal tool. A drill with a 3/32" bit is required only if no suitable existing grounding point is available near the taillight connector.
Yes, disconnect the negative battery terminal before starting installation. Reconnect it only after all other steps are complete and the fuse is installed.
Drilling is not required if a suitable existing grounding point (such as a screw with nut in the vehicle frame) is available near the taillight connector. If not, you may drill a 3/32" pilot hole for the provided ground screw.
The battery connection must use a maximum 10 amp fuse. Exceeding this rating can cause loss of warranty, overheating, and potential fire.
Use 12 gauge (12 GA) wire or larger for the power wire from the vehicle battery to the converter.
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