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2021 - 2026 Kia Seltos
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Complete CURT Class 1 1-1/4" trailer hitch and 4-flat custom wiring kit engineered for the 2021 - 2026 Kia Seltos. Vehicle-specific fit, plug-and-play installation, all hardware and instructions included.
This custom kit fits the following vehicles:
All Hardware and Installation Instructions Included!
However you define adventure -- whether it's climbing onto the back of a mountain bike, hunting from the top of a tree stand or camping with the family a long way from nowhere -- CURT class 1 hitches provide a light-duty towing receiver to help you Bring It. Each is made to fit a specific vehicle, providing easier installation, a better fit and optimal towing capacity. Custom class 1 trailer hitches are available for a variety of smaller vehicle types, including the compact car, crossover, minivan and small SUV. This particular class 1 hitch is designed to be a custom hitch for certain years of the Kia Seltos (to verify vehicle compatibility, see the CURT application guide at curtmfg.com). Tested in accordance with SAE J684, it offers a weight carrying capacity of 2,000 lbs. GTW and 200 lbs. TW. It is equipped with 1-1/4" receiver tube opening to accept a ball mount shank or other hitch mount. This class 1 hitch also comes with all necessary mounting hardware. With its lightweight design and smaller receiver tube size, a class 1 hitch is especially useful for adding cargo space with a hitch-mounted bike rack or cargo carrier. They can also typically be used to tow small trailers such as a utility trailer, kayak trailer or teardrop camper (never exceed the lowest weight capacity of any towing component; i.e. the vehicle, hitch, trailer, etc). Though CURT class 1 trailer hitches are only intended for light-duty towing, we apply the same principles of quality as we do to the rest of our rear mount hitches. Each class 1 hitch is made with hands-on engineering, high-strength steel and precise welding. We use a co-cured finish of liquid A-coat, inside and out, and durable black powder coat to provide a lasting defense against rust, chips and UV rays.
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 Entourage, Kia Sedona and Kia Seltos (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 |
|---|---|---|
| 2021 - 2026 | Kia Seltos | — |
Yes, the 21 - 24 Kia Seltos Curt 1-1/4", Class 1 Trailer Tow Hitch + 4-flat Wiring Kit 11578 (Part #CHW-2053) is designed to fit the 2021-2024 Kia Seltos.
The 21 - 24 Kia Seltos Curt 1-1/4", Class 1 Trailer Tow Hitch + 4-flat Wiring Kit 11578 (Part #CHW-2053) fits 2021-2024 Kia Seltos models. The 2024 model year is the last year covered by this part number. For newer models, check for an updated version.
The 21 - 24 Kia Seltos Curt 1-1/4", Class 1 Trailer Tow Hitch + 4-flat Wiring Kit 11578 (Part #CHW-2053) fits the following vehicles: 2021-2024 Kia Seltos. Always verify your specific year, make, and model before ordering.
The 21 - 24 Kia Seltos Curt 1-1/4", Class 1 Trailer Tow Hitch + 4-flat Wiring Kit 11578 (Part #CHW-2053) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Yes, the CURT 11578 is designed for 2021-current Kia Seltos crossovers. Confirm your vehicle year and model match before purchasing.
The CURT 11578 is rated for a maximum of 2,000 lbs trailer weight and 200 lbs tongue weight when used as a weight-carrying hitch. You must never exceed your vehicle manufacturer's recommended towing capacity, which may be lower.
No. All non-trailer (wheel-less) loads applied to this hitch must be supported by CURT part number 18050 stabilizing straps. Failure to properly support non-trailer loads will void the product warranty. See the CURT catalog or www.curtmfg.com for further information on the 18050 straps.
You will need: 11/16" socket, 10mm socket, ratchet, torque wrench, 6" socket extension, marker, cutoff tool, flat head screwdriver, tape measure, and safety glasses. Proper tools will greatly improve the quality of the install and reduce installation time.
No. The CURT 11578 requires no drilling. Installation uses existing access holes in the frame rails and the fishwire technique to route hardware through the frame.
Two people may be required to ease installation. If you are hesitant to undertake this task on your own, contact an authorized CURT installer for additional assistance, or call technical support at 877-287-8634.
The installation is rated as moderate difficulty. The manual recommends reading all instructions thoroughly before beginning and using proper tools to improve the quality of the install.
Yes. You must remove the underbody panel on the passenger side of the vehicle using a 10mm socket and flat head screwdriver to remove one nut and two plastic clips. Save the hardware and panel for reinstallation after the hitch is installed.
Yes. You must lower the exhaust by disconnecting two rubber isolators on the vehicle muffler. Be sure to support the exhaust to prevent damage during this step. The exhaust hangers are reinstalled in the final steps.
The fishwire technique routes the mounting hardware through the frame rails. You thread three 7/16" carriage bolts and spacers through the access hole in each frame rail (passenger and driver side) using the 7/16" fishwire, leaving the hardware inside the frame rails with wires attached. The wires are then pulled to draw the hardware through the hitch mounting holes. This allows fastening without drilling.
After fishwiring the hardware through the frame rails, raise the hitch into position. Then pull the fishwires and hardware through the mounting holes in the hitch. Remove the fishwire from one bolt at a time and install the 7/16" hex flange nut by hand, repeating for all bolts before final torquing.
All fasteners must be torqued to 59 lb-ft using a torque wrench.
Yes. You must trim the underbody panel to provide clearance around the hitch. The manual provides reference dimensions of 3.00 inches and 1.75 inches, but notes these are reference only. Trim only as much as is needed to provide clearance. Use a cutoff tool for this step.
The kit includes: 6 bolts (7/16-14 UNC, 1-1/4", grade 8, yellow zinc, part 10-10281); 6 serrated flange nuts (7/16-14 UNC, grade 8, yellow zinc, part 20-00103); 6 pieces of 7/16" fishwire (part 7_16 FISHWIRE); and 6 spacer plates (0.25", A36 HRS, part 403020-SP).
After installation, verify that all fasteners are tight and all structural components are sound. The manual recommends periodically checking the receiver hitch to ensure all fasteners remain tight and structural components remain sound during the life of the product.
Safety glasses must be worn at all times while installing this product. When lowering the exhaust, be sure to support it to prevent damage. When installing fasteners, use caution to not allow hardware to fall into the frame rails. If you are hesitant to undertake this task, contact an authorized CURT installer.
You should periodically check the receiver hitch to ensure all fasteners are tight and all structural components are sound. The manual does not specify an exact interval, but recommends regular inspection throughout the life of the product.
CURT Manufacturing warrants this product to be free of defects in material and workmanship at the time of retail purchase by the original purchaser. If the product is found to be defective, CURT may repair or replace it at their option when returned prepaid with proof of purchase. Alteration, misuse, or improper installation voids the warranty. CURT's liability is limited to repair or replacement of defective products and excludes incidental or consequential loss or damage.
The CURT 11578 complies with safety specifications and requirements for connecting devices and towing systems of the state of New York, V.E.S.C. Regulation V-5 and SAE J684.
The CURT 11578 fits 2021-current Kia Seltos crossovers only. Confirm your year and model before purchasing.
Maximum 2,000 lbs trailer weight and 200 lbs tongue weight. Never exceed your vehicle manufacturer's recommended towing capacity.
No drilling required. The hitch uses existing frame rail access holes and the fishwire technique for fastening.
11/16" and 10mm sockets, ratchet, torque wrench, 6" socket extension, marker, cutoff tool, flat head screwdriver, tape measure, and safety glasses.
No. Non-trailer loads must be supported by CURT 18050 stabilizing straps. Failure to do so voids the warranty.
CURT part number 56442 is a trailer wiring harness with a powered converter system. It provides electrical connections for trailer lighting on compatible vehicles. The system includes a converter box that connects to the vehicle's taillight circuits and battery to power a 4-flat trailer connector. It is designed for use on 12-volt negative ground systems only.
CURT part 56442 is designed for the following vehicles: Hyundai Entourage, Hyundai Tucson, Hyundai Veloster, Kia Sedona, Kia Seltos, and Kia Soul. Each vehicle has specific installation steps. Verify your exact vehicle model and year match one of these applications before purchasing.
Yes, if your vehicle is a 12-volt negative ground system. The converter system is designed only for 12-volt negative ground vehicles. Check your vehicle owner's manual to confirm your electrical system type before installation.
Required tools are: ratchet, flathead screwdriver, 10mm socket, utility knife, socket extension, wire crimper, electrical tape, wire stripper, Phillips screwdriver, and panel removal tool. Proper tools will improve installation quality and reduce installation time.
The kit includes: custom wiring harnesses with yellow and green wire connectors, a black converter box, a 4-flat connector with dust cover, cable ties, double-sided tape for mounting the converter box, a white ground wire with ring terminal and screw, a fuse holder with 10-amp fuse, and butt connectors. Specific quantities are shown in the Hardware Photo on page 1.
Yes, you must disconnect the negative battery terminal before beginning installation. Secure the disconnected wire away from the battery while completing the installation. Reconnect the negative battery terminal only after all other installation steps are complete and before testing the system.
The installation is rated as Easy. However, this rating assumes you have the proper tools and follow all steps carefully. Each vehicle model has specific installation procedures that must be followed for proper function.
Open the vehicle hatch. Starting on the driver side, use a Phillips screwdriver to remove three screws securing the taillight assembly. Pull the taillight straight back and separate the connectors from the taillight housing, taking care not to damage the locking tabs. Repeat on the passenger side.
Open the vehicle hatch. Use a trim removal tool to release a small tab in the taillight trim cover and set it aside. Use a 10mm socket to remove the taillight fasteners. Pull the taillight straight back and separate the connectors from the taillight housing, taking care not to damage the locking tabs. Repeat on the passenger side.
Open the vehicle trunk. Starting on the driver side, use a flathead screwdriver to open the access covers for the taillight mounting screws. Use a Phillips screwdriver to remove three screws: two under the removed access caps and one in the rubber bumper. Remove the taillights by pulling them straight back and up. Separate the connectors from the taillight housings, taking care not to damage the locking tabs. Repeat on the passenger side.
Open the vehicle hatch. Starting on the driver side, use a Phillips screwdriver to remove two screws securing the taillight. Remove the taillights by pulling straight back. Separate the connectors from the taillight housings, taking care not to damage the locking tabs. Remove the two push fasteners as shown. Repeat on the passenger side.
Open the vehicle hatch. Starting on the driver side, use a Phillips screwdriver to remove three screws as shown. Remove the taillight by pulling straight back. Separate the connectors from the taillight housings, taking care not to damage the locking tabs. Repeat on the passenger side.
Route the custom wiring end with the green wire and 4-way flat down between the body and the bumper cover. Route the 4-flat along the backside of the bumper to the center of the vehicle and mount it close to the trailer hitch. Route the green wire along the backside of the bumper to the passenger side using a fishwire. Secure any loose wires with the provided cable ties.
Use the trim panel removal tool to remove two push fasteners in the bumper cover. Run a fishwire down between the body of the vehicle and the bumper cover. Attach the custom wiring end with yellow wire to the fishwire and pull the harness up between the body and the bumper cover. You may need to flex the bumper cover to get the housings through the opening. Route the green wire along the backside of the bumper to the passenger side. Secure any loose wires with the provided cable ties.
Attach the custom wiring end with the green wire and 4-flat to the fishwire and pull the harness down inside the bumper to the underbody of the vehicle. From under the vehicle, route over to the center of the vehicle. Continue routing the wiring to the passenger side of the vehicle and up to the taillight. Secure any loose wires with the provided cable ties.
Route the fishwire down between the body and bumper cover. From underneath the vehicle, locate the connector with the yellow wire. Pull the harness up to the taillight. Route the 4-flat along the backside of the bumper to the center of the vehicle and mount it close to the trailer hitch. Route the green wire along the backside of the bumper to the passenger side. Use a trim removal tool to remove the two push fasteners to locate the fishwire. Secure any loose wires with the provided cable ties.
Use a Phillips screwdriver to remove the push fastener in the bumper cover to allow more room while fishwiring the custom wiring housing up to the taillight. Route the fishwire down between the body and bumper cover. From underneath the vehicle, locate the connector with the yellow wire. Pull the harness up to the taillight. Route the 4-flat along the backside of the bumper to the center of the vehicle and mount it close to the trailer hitch. Route the green wire along the backside of the bumper to the passenger side. Secure any loose wires with the provided cable ties.
Insert the custom wiring end with yellow wire between the separated taillight connectors. Make sure the connectors are fully inserted with locking tabs in place. Repeat for the green wire connector on the passenger side. Take care not to damage the locking tabs during insertion.
Locate a flat clean surface that is out of the path of spray and debris from the rear wheels and road. Adhere the black converter box using the provided double-sided tape. For Hyundai Veloster and Kia Seltos, mount it in a flat spot between the body of the vehicle and the bumper cover just below the taillight. Failure to mount the box in a protected area can cause loss of warranty, product failure, overheating and potential fire.
Drilling is required only for the ground wire connection on some vehicles. You may need to drill a 3/32" pilot hole for the provided ground screw if a suitable existing screw with nut is not available in the vehicle frame. The area should be free of rust, dirt and paint. Check for miscellaneous items that may be hidden behind or under any surface before drilling to avoid damage and personal injury.
The pilot hole size is 3/32". Drill this hole only if a suitable existing screw with nut is not available in the vehicle frame near the connector. The area should be free of rust, dirt and paint before drilling.
Signal circuits: 3.0 amps per side. Tail/Running circuits: 6.0 amps total. Do not exceed the product rating or tow vehicle lamp load rating, whichever is lower. Exceeding the product rating can cause loss of warranty, overheating and potential fire.
The battery connection must be fuse-protected with a 10-amp maximum fuse. Install the fuse after all other installation steps are complete. The fuse holder is included in the kit.
Use 12 GA wire or larger to route from the vehicle battery to the converter system. Route the 12 GA wire to the vehicle battery location, taking care to avoid any pinch points and hot or rotating components.
Disconnect the negative battery terminal before wiring the power wire. Route the black 12 GA power wire to the positive battery (+) terminal using a ring terminal for the battery connection. Use the ring terminal provided with the kit. 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 power wire from sharp edges. Install the 10-amp fuse after all other steps are complete.
Locate a suitable grounding point near the connector such as an existing screw with nut in the vehicle 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. This connection is required on Hyundai Tucson, Hyundai Veloster, and Kia Soul.
Yellow wire: Left turn signal. Green wire: Right turn signal. Red wire: Brake. Brown wire: Taillight. The custom wiring harness uses yellow and green wires to connect to the vehicle's taillight connectors. The black power wire connects to the positive battery terminal. The white ground wire connects to the vehicle frame.
The 4-flat connector is the trailer connector that plugs into your trailer's wiring harness. It carries the signal and lighting circuits from the vehicle to the trailer. Route the 4-flat along the backside of the bumper to the center of the vehicle and mount it close to the trailer hitch. When not in use, roll it up and store in a convenient, out-of-the-way location. A dust cover is provided to help prevent corrosion.
Disconnect the negative battery terminal before beginning installation. Secure the disconnected wire away from the battery. Do not lay tools on the positive (+) battery terminal, as this can cause a short in the system, sparks and/or electrical shocks. Reconnect the negative battery terminal only after all other installation steps are complete.
Check for miscellaneous items that may be hidden behind or under any surface before drilling to avoid damage and personal injury. This is especially important when drilling the 3/32" pilot hole for the ground wire screw.
Once the 12-volt power wire is connected to the harness, verify that the harness is functioning using a test light, 4-flat tester, or a functioning trailer. This test should be performed before considering the installation complete.
Reinstall all items removed during installation. If the negative battery terminal was disconnected at the beginning, reconnect it. Install the provided 4-flat dust cover to help prevent corrosion. Verify that the harness is functioning using a test light, 4-flat tester, or a functioning trailer before towing.
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.
CURT 56442 fits Hyundai Entourage, Hyundai Tucson, Hyundai Veloster, Kia Sedona, Kia Seltos, and Kia Soul. Verify your exact vehicle model matches before purchasing.
You need: ratchet, flathead screwdriver, 10mm socket, utility knife, socket extension, wire crimper, electrical tape, wire stripper, Phillips screwdriver, and panel removal tool.
Yes, disconnect the negative battery terminal before starting installation and reconnect it only after all other steps are complete.
Drilling is optional and only needed if no existing screw with nut is available for the ground wire connection. If drilling is necessary, drill a 3/32" pilot hole.
Use a 10-amp maximum fuse. The battery connection must be fuse-protected. Install the fuse after all other installation steps are complete.
Use 12 GA wire or larger to connect from the vehicle battery to the converter system.
Do not exceed the product rating or tow vehicle lamp load rating. The battery connection must be fuse-protected with a 10-amp maximum fuse. Exceeding the product rating can cause loss of warranty, overheating and potential fire.
Verify the harness is functioning using a test light, 4-flat tester, or a functioning trailer before towing.
The converter box may be mounted in an area exposed to spray and debris from the rear wheels and road. Remount the converter box in a flat clean surface that is out of the path of spray and debris. Failure to mount the box in a protected area can cause product failure, overheating and potential fire. Also verify that the 10-amp fuse is installed and that all wire connections are secure with locking tabs fully inserted.
First, verify the harness is functioning using a test light, 4-flat tester, or a functioning trailer. Check that the 10-amp fuse is installed in the fuse holder. Verify that all custom wiring connectors are fully inserted into the taillight connectors with locking tabs in place. Ensure the negative battery terminal is reconnected. Check that the white ground wire is securely attached to the vehicle frame using the ring terminal and screw. Verify that the black power wire is connected to the positive battery terminal with a ring terminal.
The locking tabs may not be fully engaged. When inserting the custom wiring end between the separated connectors, make sure the connectors are fully inserted with locking tabs in place. Take care not to damage the locking tabs during insertion. If the tabs are damaged, the connectors will not stay secure.
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