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Warranty: One-Year Limited Warranty
Electrical System Type: 3W
Output Type: 4-Way Flat
Tail Light Circuits: 7.5 Amps
Turn and Brake Circuits: 3.0 Amps
Installation Difficulty: Advanced
Installation Time Exact (Minutes): 20
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 Hyundai Sonata (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®.'
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1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2015 - 2017 | Hyundai Sonata | Installation Time: 30-60 minutes |
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Hyundai Sonata Trailer Connector Kit (Part #BKDK56247) fits the following vehicles: 2015-2017 Hyundai Sonata. Always verify your specific year, make, and model before ordering.
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Hyundai Sonata Trailer Connector Kit (Part #BKDK56247) fits 2015-2017 Hyundai Sonata models. The 2017 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the CURT Custom Wiring Harness, 4-Way Flat Output, Select Hyundai Sonata Trailer Connector Kit (Part #BKDK56247) is designed to fit the 2015-2017 Hyundai Sonata.
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Hyundai Sonata Trailer Connector Kit (Part #BKDK56247) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
Yes, part 56247 is designed for Hyundai Sonata models, excluding Hybrid variants. If you own a Sonata Hybrid, this harness is not compatible.
The harness is rated for Signal Circuits at 3.0 amps per side and Tail/Running Circuits at 7.5 amps total. Do not exceed these ratings or your tow vehicle's lamp load rating, whichever is lower, as exceeding the rating can cause loss of warranty, overheating and potential fire.
You will need a panel trim removal tool and a Phillips screwdriver. You may also need a drill with a 3/32" bit if you need to create a pilot hole for the grounding screw, depending on whether a suitable existing screw with nut is available on the vehicle frame.
Yes. The first step of installation is to locate the vehicle's battery on the driver side under the hood and disconnect the negative battery terminal. This must be done before proceeding with any other installation steps.
The black converter box should be adhered to a flat spot inside the vehicle near the taillight using the provided double-sided tape. The manual does not specify an exact location, only that it should be mounted near the taillight.
Pull back the side trim panel to locate the vehicle's taillight wiring harness connectors. Separate the connectors from the taillight housing, taking care not to damage the locking tabs. Insert the T-connector end (yellow wire for driver side, green wire for passenger side) between the separated connectors. Make sure the connectors are fully inserted with locking tabs in place.
Not necessarily. First, locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle's frame. If no existing screw is available, you will need to drill a 3/32" pilot hole for the provided grounding screw. Before drilling, check for miscellaneous items hidden behind or under any surface to avoid damage and personal injury.
Drill a 3/32" pilot hole for the provided grounding screw. The grounding point should be located near the taillight connector on a flat area of the vehicle frame that is free of rust, dirt and paint.
When in use, route the 4-flat to the center of the vehicle and out of the trunk. When not in use, roll it up and store in a convenient, out-of-the-way location inside the trunk. Secure any loose wires with the provided cable ties.
Install the provided 4-flat dust cover to help prevent corrosion. This should be done after all other installation steps are complete and the battery has been reconnected.
All steps must be followed to ensure the wiring harness functions properly. Once installed, test for proper function by using a test light or connecting a properly wired trailer. The manual does not provide detailed testing procedures beyond this.
1. Open the trunk and remove all trunk floor coverings. 2. Remove the fasteners securing the rear scuff panel and pull it out at the bottom then up. 3. Remove the push fastener and Phillips screw from the felt liner. 4. Pull back on the side trim panel to locate the taillight wiring harness connectors. Repeat this sequence on both the driver and passenger sides.
The driver side taillight wiring is located behind the driver side taillight housing, inside the trunk (P3). The passenger side taillight wiring is located behind the passenger side taillight housing, inside the trunk (P4). These are the two connection points for the yellow and green T-connector ends.
The T-connector end with the yellow wire connects to the driver side taillight. The T-connector end with the green wire connects to the passenger side taillight. The white ground wire is used for the grounding connection near the taillight connectors.
Locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle's frame, or drill a 3/32" pilot hole for the provided screw. The area should be free of rust, dirt and paint. Secure the white ground wire using the ring terminal and provided screw.
No. The Curt 56247 is designed for Hyundai Sonata models excluding Hybrid variants.
Panel trim removal tool, Phillips screwdriver, and optionally a drill with 3/32" bit if no existing grounding point is available.
Yes, disconnect the negative battery terminal before beginning installation.
Signal Circuits: 3.0 amps per side. Tail/Running Circuits: 7.5 amps total. Do not exceed these ratings or your vehicle's lamp load rating, whichever is lower.
Only if no existing screw with nut is available on the vehicle frame for grounding. If drilling is needed, a 3/32" pilot hole is required.
3/32" pilot hole.
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