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2022 - 2026 Honda Civic
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Always the correct part
We know our products
Quality Products
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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: 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 Honda Civic (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 888-634-9494One-Year Limited
1 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2022 - 2026 | Honda Civic | — |
Yes, the CURT Custom Wiring Harness, 4-Way Flat Output, Select Honda Civic 56508 (Part #BKDK56508) is designed to fit the 2022-2026 Honda Civic.
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Honda Civic 56508 (Part #BKDK56508) fits 2022-2026 Honda Civic 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 Honda Civic 56508 (Part #BKDK56508) fits the following vehicles: 2022-2026 Honda Civic. Always verify your specific year, make, and model before ordering.
The CURT Custom Wiring Harness, 4-Way Flat Output, Select Honda Civic 56508 (Part #BKDK56508) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The Curt 56508 is designed for passenger cars (sedans and hatchbacks) with 12-volt negative ground electrical systems. Check your vehicle owner's manual to confirm your electrical system is 12-volt negative ground. The product accesses wiring through taillight housings in the trunk, so your vehicle must have accessible taillight connectors from the trunk area.
No. The Curt 56508 converter is designed only for 12-volt negative ground systems. It cannot be used on 24-volt systems or positive ground systems. Check your vehicle owner's manual to confirm your electrical system voltage and ground type before purchasing.
You will need: ratchet, wire cutter, 10mm socket, crimp tool, large Phillips screwdriver, wire stripper, and panel trim removal tool. These tools are required to disconnect the battery, remove taillight fasteners and trim covers, separate connectors, and crimp wire connections.
The manual confirms the product includes: yellow, brown, red, and green wires for taillight circuits; white ground wire with ring terminal; black power wire; converter box; double-sided tape; cable ties; 4-flat connector dust cover; ground screw; and a fuse holder with 10-amp fuse. A separate 'Powered Converter Lead Instruction Sheet' provides details on the power lead assembly.
Yes. Step 1 requires you to locate the vehicle battery, disconnect the negative battery terminal, and fasten this wire down and away from the battery. The negative battery terminal must remain disconnected until all other installation steps are complete and you are ready to test the system.
No. The installation requires you to remove both taillights to access the factory wiring connectors. Step 3 requires removing the taillight by pulling it out sideways from the vehicle, locating the taillight wiring harness, and separating the connectors from the taillight housing.
The manual specifies using a fish wire technique. Insert the fish wire through the cavity below the taillight housing and locate it on the other side. Use tape to secure the harness (yellow, brown, and red wires) to the fish wire and pull back up. If the fish wire gets hung up, you may need to push back down, wiggle it around, or twist the wire to loosen it. The green wire is routed along the back of the bumper to the passenger side using the same method.
Mount the converter box under the driver side of the vehicle on a flat spot on the body or frame using the provided double-sided tape and/or cable ties. The manual specifies this location in Step 6.
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 clean it. Secure the white ground wire with its ring terminal on the existing fastener or with the provided ground screw. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
The wire colors are: Green = Right turn; Red = Brake; Yellow = Left turn; Brown = Taillight. These wires are routed from the taillight connectors to the converter box. The black power wire connects to the positive battery terminal, and the white ground wire connects to the vehicle frame or body.
Drilling may be required for the ground wire connection. If no existing screw or bolt is available as a grounding point on the vehicle frame, you must drill a 3/32" pilot hole. Before drilling, you must check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. The power wire routing may also require drilling if passing through sheet metal without an existing grommet.
Drill a 3/32" pilot hole if no existing screw or bolt is available as a grounding point. The area must be free from rust, dirt, and paint before drilling. Use an abrasive pad or paper to clean the area.
The maximum fuse rating is 10 amps. The battery connection must be fuse-protected with a 10-amp max fuse. Exceeding this rating can cause loss of warranty, overheating, and potential fire. The fuse holder with 10-amp fuse is included and must be installed after all other steps are complete.
Use 12 GA (12-gauge) wire or larger for the power connection from the vehicle battery to the converter. The manual specifies routing 12 GA wire to the vehicle battery location, taking care to avoid pinch points and hot or rotating components.
When passing the power wire through sheet metal, use an existing grommet, add a grommet, or use silicone to protect the power wire from sharp edges. This prevents the wire insulation from being damaged by the metal edges.
The signal circuits (left turn, right turn) are rated for 3.0 amps per side. The tail/running circuits are rated for 6.0 amps total. Do not exceed these ratings or the product rating, whichever is lower than the tow vehicle lamp load rating.
The tail/running circuits are rated for 6.0 amps total. Do not exceed this rating or the product rating, whichever is lower than the tow vehicle lamp load rating.
Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. The manual does not specify a numeric maximum load rating; you must check your vehicle owner's manual or contact the vehicle manufacturer for the tow vehicle lamp load rating.
Route the 12 GA power wire to the vehicle battery location, taking care to avoid any pinch points and hot or rotating components. 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 it from sharp edges. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
After connecting the 12-volt power wire 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 this verification step before final reconnection of the negative battery terminal.
After installation, reinstall all items removed during installation. If the negative battery terminal was disconnected, reconnect it. Install the provided 4-flat dust cover to help prevent corrosion. Test the system with a test light, 4-flat tester, or functioning trailer to verify proper operation. Secure any loose wires with the provided cable ties.
Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections. This helps maintain proper function and prevent electrical issues.
The Curt 56508 is designed for passenger cars (sedans and hatchbacks) with 12-volt negative ground electrical systems. Confirm your vehicle has a 12-volt negative ground system in your owner's manual and that taillight connectors are accessible from the trunk.
Yes. Disconnect the negative battery terminal before beginning installation and keep it disconnected until all wiring is complete and you are ready to test the system.
The maximum fuse rating is 10 amps. Exceeding this can cause loss of warranty, overheating, and potential fire.
Use 12 GA (12-gauge) wire or larger for the power connection from the vehicle battery to the converter.
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