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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
Finish: Blank
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): 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 Jeep Grand Cherokee and Jeep Grand Cherokee L (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
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2 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2022 - 2026 | Jeep Grand Cherokee | Installation Time: 30-60 minutes |
| 2021 - 2026 | Jeep Grand Cherokee L | Installation Time: 30-60 minutes |
Yes, the CURT Custom Wiring Harness, 4-Way Flat Output, Select Jeep Grand Cherokee, L Trailer Connector Kit (Part #BKDK56473) is designed to fit the 2022-2026 Jeep Grand Cherokee.
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Jeep Grand Cherokee, L Trailer Connector Kit (Part #BKDK56473) fits the following vehicles: 2022-2026 Jeep Grand Cherokee; 2021-2026 Jeep Grand Cherokee L. Always verify your specific year, make, and model before ordering.
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Jeep Grand Cherokee, L Trailer Connector Kit (Part #BKDK56473) fits 2022-2026 Jeep Grand Cherokee models. The 2026 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 Jeep Grand Cherokee, L Trailer Connector Kit (Part #BKDK56473) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
The Curt 56473 is a custom wiring harness for SUVs and vans that provides trailer lighting connections. It integrates with the vehicle's factory taillight wiring to supply power for trailer signal circuits (3.0 amps per side), tail/running circuits (6.0 amps total), and brake signals. The harness includes a powered converter module that connects to the vehicle battery and outputs a 4-flat connector for trailer use.
The Curt 56473 is designed for SUVs and vans. The manual does not specify which models, years, or configurations are compatible. Contact Curt Manufacturing or consult a fitment database to confirm compatibility with your specific vehicle before purchasing.
Yes. The powered converter lead instruction sheet explicitly states: 'This converter system is to be used only on 12 volt negative ground systems.' If your vehicle uses a different electrical system, this product is not compatible.
The following tools are required: ratchet, Torx bit T-27, socket extension, and panel trim removal tool. A fishwire (which can be made from a cut-up wire hanger, stiff wire, rope or string) is also needed to route the harness through blind holes. A drill with a 3/32" bit may be needed if a grounding point must be created.
The manual shows a hardware photo but does not itemize all included components. Based on the instructions, the kit includes: custom wiring harness with green and yellow wire housings, white ground wire with ring terminal, black power wire, provided ground screw, cable ties, 4-flat dust cover, and double-sided tape for converter mounting. A fuse holder with 10-amp fuse is also mentioned. Refer to the product packaging or contact Curt Manufacturing for a complete parts list.
Yes. Step 1 requires you to locate the vehicle battery and disconnect the negative battery terminal before beginning installation. Fasten this wire down and away from the battery while completing the installation. The negative battery must remain disconnected until after all wiring steps are complete and you are ready to test the system.
Yes. Steps 2 and 3 require removal of both taillight trim panels and taillights. Use a panel trim removal tool to remove the push fastener and taillight cover. Then use a T-27 Torx bit to remove the screw securing the taillight. Remove the taillight at a 45° angle from the vehicle, as alignment tabs only allow removal in this direction. Locate and separate the taillight wiring connectors, taking care not to damage the locking tabs.
A fishwire is a tool used to push or pull electrical wire through a blind hole. It can be made from a cut-up wire hanger, stiff wire, rope or string. To use it: (1) ensure the fishwire is long enough to stick out on the other side of the hole, (2) insert it through the blind hole and locate it on the other side, (3) use tape to secure the harness to the fishwire, and (4) pull the harness back up. If the harness gets hung up, you may need to push back down, wiggle it around, or twist the wire to loosen it. The manual specifies routing the fishwire down between the bumper cover in the further rear opening and the vehicle body.
After removing the taillights (Steps 2-3), locate the vehicle's factory taillight wiring connectors. The connectors will be similar to those on the custom wiring product. Separate the connectors from the taillight housing, taking care not to damage the locking tabs. Then, starting on the passenger side, locate the housing with the green wire on the custom harness. Use a fishwire to pull the harness up from under the vehicle bumper to the taillight cavity. Attach the custom wiring harness to the vehicle factory wiring and secure to the taillight. Set the taillight inside the cavity but do not fully install at this time. Repeat on the driver side with the yellow wire housing.
Route the housing with the yellow wire above the bumper mount and along the bumper to the driver side. Zip tie as needed along the bumper. Route above the driver-side bumper mount. Then repeat the fishwire process (Step 5) to pull this housing up to the taillight cavity on the driver side.
Locate a grounding point such as an existing screw or bolt in the frame of the vehicle. If no suitable point exists, drill a 3/32" pilot hole. The area must be free from rust, dirt, and paint—use an abrasive pad or paper to remove rust and paint. Secure the white ground wire with the ring terminal on the existing fastener or with the provided ground screw.
Route the black power wire from the vehicle battery as shown on the provided 'Powered Converter Lead Instruction Sheet.' The wire must be 12 GA or larger. Route it to the positive battery terminal using a ring terminal connection. Secure the power wire to the vehicle chassis using the provided cable ties. When passing the power wire through sheet metal, use an existing grommet, add a grommet, or use silicone to protect the wire from sharp edges. Avoid pinch points and hot or rotating components. Do not connect the fuse until all other steps are complete.
Mount the converter using the provided double-sided tape. The manual does not specify a particular location on the vehicle. Refer to the 'Powered Converter Lead Instruction Sheet' diagram or contact Curt Manufacturing for the recommended mounting location for your specific vehicle.
Drilling may be required. If a suitable grounding point (existing screw or bolt on the vehicle frame) is not available, you must drill a 3/32" pilot hole for the ground wire connection. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. The area must be cleaned of rust, dirt, and paint using an abrasive pad or paper.
Signal circuits: 3.0 amps per side. Tail/Running circuits: 6.0 amps total. The battery connection must be fuse-protected with a 10-amp maximum fuse. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. Exceeding the product rating can cause loss of warranty, overheating, and potential fire.
Green wire: Right turn signal. Yellow wire: Left turn signal. Red wire: Brake signal. Brown wire: Taillight/running light. These colors are used in the custom wiring harness housings and correspond to the standard trailer lighting functions.
The 4-flat connector is the trailer connection point. When in use, route the 4-flat to the center of the vehicle and out of the trunk to the trailer. Be sure to stay clear of the trunk's latching mechanism. When not in use, roll up and store in a convenient, out-of-the-way location. A 4-flat dust cover is provided to help prevent corrosion when the connector is not in use.
The maximum fuse rating is 10 amps. The fuse holder with a 10-amp fuse must be installed after all other installation steps are complete. Do not exceed this rating, as exceeding the product rating can cause loss of warranty, overheating, and potential fire.
If using the converter as a powered module for a two-wire system, the red brake wire must be grounded. This is a specific requirement for two-wire trailer systems and differs from standard four-wire installations.
Before drilling or routing wires, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. When routing the black power wire to the battery, take care to avoid pinch points and hot or rotating components. Disconnect the negative battery terminal before wiring the power wire. Use a ring terminal for the battery connection. Secure the power wire to the vehicle chassis using provided cable ties. When passing the power wire through sheet metal, use an existing grommet, add a grommet, or use silicone to protect the wire from sharp edges.
Once the 12-volt power wire is connected to the harness, verify that the harness is functioning by attaching the battery and testing with a test light, 4-flat tester, or a functioning trailer. The manual specifies that all steps must be followed to ensure the product will function properly. After testing, reinstall all items removed during installation and reconnect the negative battery terminal if it was disconnected.
Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections. Install the provided 4-flat dust cover to help prevent corrosion when the connector is not in use. Secure any loose wires with the provided cable ties.
The Curt 56473 is designed for SUVs and vans, but the manual does not list specific models or years. Confirm compatibility with your vehicle before purchasing by contacting Curt Manufacturing or checking a fitment database.
Yes, if your vehicle has a 12-volt negative ground electrical system. The converter is designed only for this type of system. Check your vehicle owner's manual to confirm your electrical system type.
You will need a ratchet, T-27 Torx bit, socket extension, panel trim removal tool, and a fishwire (which can be made from wire, rope, or string). A drill with a 3/32" bit may be needed if you must create a grounding point.
Yes. Disconnect the negative battery terminal before beginning installation and keep it disconnected until all wiring steps are complete and you are ready to test the system.
The maximum fuse rating is 10 amps. Do not exceed this rating, as it can cause loss of warranty, overheating, and potential fire.
Signal circuits: 3.0 amps per side. Tail/Running circuits: 6.0 amps total. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower.
Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. Clean the area of rust, dirt, and paint using an abrasive pad or paper.
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