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Vehicle battery connection required
Warranty: One-Year Limited Warranty
Electrical System Type: 3W
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): 45
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 Subaru Crosstrek hybrid and Crosstrek XV hybrid (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 888-634-9494Rediscover "Us" Time | Tested. Proven. Safe. Towing Products
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2014 - 2015 | Subaru XV Crosstrek | Installation Time: 30-60 minutes |


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The CURT Custom Wiring Harness, 4-Way Flat Output, Select Subaru Crosstrek, XV Hybrid Trailer Connector Kit (Part #BKDK56243) fits the following vehicles: 2014-2015 Subaru XV Crosstrek. Always verify your specific year, make, and model before ordering.
Yes, the CURT Custom Wiring Harness, 4-Way Flat Output, Select Subaru Crosstrek, XV Hybrid Trailer Connector Kit (Part #BKDK56243) is designed to fit the 2014-2015 Subaru XV Crosstrek.
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Subaru Crosstrek, XV Hybrid Trailer Connector Kit (Part #BKDK56243) fits 2014-2015 Subaru XV Crosstrek models. The 2015 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Subaru Crosstrek, XV Hybrid Trailer Connector Kit (Part #BKDK56243) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
Yes, CURT part 56243 is designed for all Subaru Crosstrek models, including the XV Crosstrek, XV Crosstrek Hybrid, and Crosstrek Hybrid. Check the manual's applications list to confirm your specific model year and variant are included.
The CURT 56243 is a custom wiring harness that connects your Subaru Crosstrek's taillights to a 4-flat trailer connector. It includes a converter box, ground wire, power wire, and harness ends with yellow and green wires for driver and passenger side taillights respectively.
You will need: a ratchet, 10mm socket, panel trim removal tool, Phillips screwdriver, side cutter, and a cutting tool. A drill may be needed if you choose to drill a pilot hole for the grounding screw, though an existing screw with nut in the vehicle frame can be used instead.
Yes. Step 1 requires you to locate the vehicle battery on the driver side under the hood and disconnect the negative battery terminal before beginning any installation work.
Open the tailgate and remove all trunk floor coverings and storage trays. Remove fasteners securing the rear storage tray, then remove fasteners securing the rear scuff panel. Pull the scuff panel out at the bottom and then up. On the driver side, remove two Phillips screws securing the taillight housing, then gently pull the taillight rearward and out. The taillight wiring connectors will be visible behind the housing.
The grommet is the rubber seal where factory wires run from inside the trunk to the taillight. You make a small slit in it to route the CURT wiring harness end with the yellow wire out from the trunk, through the slit, and to the taillights. This allows the new harness to follow the same path as the factory wiring.
Insert the CURT wiring harness end with the yellow wire between the separated factory taillight connectors. Make sure the connectors are fully inserted with locking tabs in place. Repeat this process on the passenger side using the harness end with the green wire.
Not necessarily. Step 7 instructs you to locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame. If no suitable existing screw is available, you may drill a 3/32" pilot hole for the provided screw. The area must be free of rust, dirt and paint.
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. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower.
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 ratings or the tow vehicle lamp load rating, whichever is lower.
Locate a flat spot inside the vehicle near the taillight and adhere the black converter box using the provided double-sided tape. The manual does not specify exact dimensions or clearance requirements, so choose a location that is accessible and protected from moisture.
When in use, route the 4-flat to the center of the vehicle. When not in use, roll it up and store in a convenient, out-of-the-way location. Secure any loose wires with the provided cable ties.
After installation, test for proper function by using a test light or connecting a properly wired trailer. All steps must be followed to ensure the wiring harness functions properly. Reconnect the negative battery terminal and install the provided 4-flat dust cover to help prevent corrosion.
Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. This is especially important when drilling the 3/32" pilot hole for the ground wire screw.
The CURT 56243 uses yellow wire for the driver side taillight connection, green wire for the passenger side taillight connection, white wire for the ground connection, and black wire for the power connection to the converter box.
Yes, CURT 56243 fits all Subaru Crosstrek models including XV Crosstrek, XV Crosstrek Hybrid, and Crosstrek Hybrid.
Ratchet, 10mm socket, panel trim removal tool, Phillips screwdriver, side cutter, and cutting tool. A drill may be needed for the ground wire pilot hole.
Yes, disconnect the negative battery terminal before starting installation.
No, not if an existing screw with nut is available in the vehicle frame. If not, drill a 3/32" pilot hole for the provided screw.
10-amp maximum. Exceeding this can cause loss of warranty, overheating and potential fire.
Converter box, ground wire with ring terminal and screw, power wire, wiring harness ends with yellow and green wires, cable ties, and 4-flat dust cover.

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