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2017 - 2022 Kia Sportage
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Complete CURT Class 2 1-1/4" trailer hitch and 5-flat wiring kit (with 4-way to 5-way adapter for surge brakes) engineered for the 2017 - 2022 Kia Sportage. 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!
Whatever the next checkpoint is on your adventure -- whether it's getting your bike on the trail before sunrise or making it to the campground before dark -- CURT class 2 hitches let you Bring It with confidence. These receiver hitches are made to handle most light-duty towing applications and offer a custom fit for your vehicle. Typically used on full-size cars, crossovers, compact SUVs, minivans or even compact pickup trucks, a CURT class 2 trailer hitch complements the design of smaller vehicles. This particular class 2 hitch is made to be a custom hitch for certain years of the Kia Sportage (to verify vehicle compatibility, see application info). It offers a weight carrying capacity of 3,500 lbs. GTW and 350 lbs. TW. Class 2 trailer hitches can typically be used to tow a variety of lightweight trailers, such as a small utility trailer, small fishing boat trailer or popup camper (NOTE: Never exceed the lowest weight capacity of any towing component). They are also perfect for adding cargo space to your vehicle with a bike rack or cargo carrier. This class 2 hitch features a 1-1/4" receiver tube to accept a ball mount shank or other hitch-mounted accessory. For safety, it is tested in accordance with SAE J684. A custom trailer hitch design requires extra care, and as such, CURT class 2 hitches are engineered using real vehicles and hands-on research. We use high-strength steel, robotic welding and rigorous testing to produce hitches that are built to fit your lifestyle. To ensure that each hitch will be a reliable extension of your vehicle, we also finish our hitches in a co-curing of liquid A-coat and black powder coat, giving them long-lasting rust and wear resistance.
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 Kia Sportage (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 |
|---|---|---|
| 2017 - 2022 | Kia Sportage | — |
Yes, the 17 - 22 Kia Sportage Curt 1-1/4" Class 2 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 12158 (Part #5W-CHW-2079) is designed to fit the 2017-2022 Kia Sportage.
The 17 - 22 Kia Sportage Curt 1-1/4" Class 2 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 12158 (Part #5W-CHW-2079) fits 2017-2022 Kia Sportage models. The 2022 model year is the last year covered by this part number. For newer models, check for an updated version.
The 17 - 22 Kia Sportage Curt 1-1/4" Class 2 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 12158 (Part #5W-CHW-2079) fits the following vehicles: 2017-2022 Kia Sportage. Always verify your specific year, make, and model before ordering.
The 17 - 22 Kia Sportage Curt 1-1/4" Class 2 Trailer Tow Hitch + 5-Flat Wiring Kit Tow Boat/Utility Trailer with Surge Brakes 12158 (Part #5W-CHW-2079) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
Yes, CURT part number 12158 is designed for 2017-current Kia Sportage SUVs. This is a weight-carrying hitch with a maximum trailer weight capacity of 3,500 lbs and tongue weight capacity of 350 lbs.
No. The CURT 12158 is designed for 2017-current Kia Sportage models only. It is not compatible with earlier model years.
The CURT 12158 is rated for a maximum trailer weight of 3,500 lbs and a tongue weight of 350 lbs when used as a weight-carrying hitch. You must never exceed your vehicle manufacturer's recommended towing capacity.
You will need: a ratchet, 17mm socket, torque wrench, 6-inch socket extension, flathead screwdriver, and safety glasses. A torque wrench is essential because the M10 fasteners must be torqued to exactly 48 lb-ft.
The hitch includes 8 M10x1.25 hex head cap screws (part 10-10271) and 8 conical toothed washers 7/16 inch (part 30-00163). These fasteners attach the hitch to the vehicle's existing weldnuts on both frame rails.
No. The CURT 12158 requires no drilling. It attaches to existing weldnuts on the vehicle's frame rails using the supplied M10 fasteners.
Yes. You must temporarily remove underbody panels (3 plastic clips on each side) and lower the exhaust by detaching 2 exhaust isolators. These components are reinstalled after the hitch is secured.
Two people may be required to ease installation. The manual recommends having a second person available, though it does not explicitly state that one person cannot complete the installation alone.
The M10 fasteners must be torqued to 48 lb-ft. Use a torque wrench to ensure this specification is met exactly.
The CURT 12158 is designed for use with ball mount part number 45521. Euro mount options are also available: part 45571 (1 7/8 inch ball) and part 45572 (2 inch ball).
Safety glasses must be worn at all times during installation. Read all instructions thoroughly before beginning. If you are hesitant to undertake this task, contact an authorized CURT installer for assistance.
Non-trailer (wheel-less) loads can be carried, but they must be supported by CURT 18050 stabilizing straps. Failure to properly support non-trailer loads will void the product warranty. Do not exceed your vehicle manufacturer's recommended towing capacity.
Periodically check the receiver hitch to ensure that all fasteners are tight and that all structural components are sound. This ongoing inspection helps maintain the integrity and safety of the hitch.
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 defective, CURT may repair or replace the product at their option when returned prepaid with proof of purchase. Warranty is voided by alteration, misuse, or improper installation.
The CURT 12158 fits 2017-current Kia Sportage SUVs only. It has a 3,500 lbs trailer weight and 350 lbs tongue weight capacity.
No drilling is required. The hitch attaches to existing weldnuts on the vehicle frame rails using supplied M10 fasteners.
You need a ratchet, 17mm socket, torque wrench, 6-inch socket extension, flathead screwdriver, and safety glasses. A torque wrench is essential for tightening fasteners to 48 lb-ft.
Yes. You must temporarily remove underbody panels and lower the exhaust by detaching 2 exhaust isolators. Both are reinstalled after hitch installation.
M10 fasteners must be torqued to 48 lb-ft using a torque wrench.
Non-trailer loads require CURT 18050 stabilizing straps. Failure to use them voids the warranty. Never exceed your vehicle manufacturer's towing capacity.
Periodically check that all fasteners are tight and structural components are sound.
Yes, the Curt 56321 Custom Wiring Harness is designed for Kia Sportage SUVs, Mini & Full-Sized Vans (S). Verify your vehicle matches the application before purchasing.
The Curt 56321 is a Custom Wiring Harness with a Wiring Location Guide that integrates with your vehicle's taillight and battery systems to provide trailer lighting control. It includes a converter box and a 4-flat connector for trailer use.
You will need: ratchet, 10mm socket, Phillips screwdriver, flat blade screwdriver, panel trim removal tool, wire stripper, wire crimper, cutting tool, and sealant (not provided). A 3/32" drill bit is also needed if drilling a pilot hole for the ground wire.
The kit includes the custom wiring harness with 4-pin and 12-pin connectors, a black converter box, a 4-flat dust cover, double-sided tape for mounting the converter box, a ring terminal and screw for the ground wire, and cable ties for securing loose wires. Sealant is not provided and must be purchased separately.
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.
The battery connection must be fuse-protected with a 10-amp maximum. 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 7.5 amps per side. Tail and Running circuits are rated at 7.5 amps total. Do not exceed these ratings or the tow vehicle lamp load rating, whichever is lower.
The vehicle 12-pin connectors are located underneath the vehicle on the driver side, behind the rear tire. They will be similar in appearance to the connectors on the custom wiring harness. Separate them carefully to avoid damaging the locking tabs.
Open the tailgate and remove all trunk floor coverings. Remove the fasteners securing the rear scuff panel and pull it out at the bottom then up, taking care not to damage the alignment tabs. On the driver side, remove the fasteners and cargo tie down from the side trim panel and pull it back. Remove the two fasteners securing the taillight and gently pull it rearward to access the taillight wiring harness connectors.
Yes. You must cut slits in two grommets: one behind the taillight (Step 10) to route the custom wiring harness end with the 4-pin connector and red wire, and one in the floor pan (Step 13) to route the custom wiring harness end with the 12-pin connectors and yellow wire. The slits must be large enough to accommodate the wiring harness ends. After routing the wires, reseal the grommets with sealant.
You may need to drill. Locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame. If no suitable existing point is available, drill a 3/32" pilot hole. The area must be free of rust, dirt, and paint. Secure the white ground wire using the ring terminal and provided screw. Always check for hidden items before drilling to avoid damage and personal injury.
The harness includes: a red wire (routes through the taillight grommet with the 4-pin connector), a yellow wire (routes through the floor pan grommet with the 12-pin connectors), a black power wire (connects to the vehicle battery as shown on the included CME-PCL-INS sheet), and a white ground wire (connects to a grounding point near the connector using the provided ring terminal and screw).
Locate a flat spot inside the vehicle near the taillight and adhere the black converter box using the provided double-sided tape. When in use, route the 4-flat connector to the center of the vehicle. When not in use, roll it up and store in a convenient, out-of-the-way location.
Route the 4-flat connector to the center of the vehicle when in use. 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 to prevent movement and potential damage.
Reinstall all items removed during installation and reconnect the negative battery terminal. Install the provided 4-flat dust cover to help prevent corrosion. Test the wiring harness 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.
Disconnect the negative battery terminal before starting work. When drilling, check for hidden items behind or under any surface to avoid damage and personal injury. Take care not to damage the locking tabs on connectors or the alignment tabs on panels when separating or removing them. Do not exceed the product rating (10-amp fuse max) or the tow vehicle lamp load rating, whichever is lower, as exceeding these can cause overheating and potential fire.
The 4-flat connector is the trailer connection point. When in use, it should be routed to the center of the vehicle for connection to a trailer. When not in use, it should be rolled up and stored in a convenient, out-of-the-way location. A dust cover is provided to help prevent corrosion.
Yes, the Curt 56321 Custom Wiring Harness is designed for Kia Sportage SUVs, Mini & Full-Sized Vans (S).
Yes, disconnect the negative battery terminal before beginning installation.
10-amp maximum. Exceeding this can cause loss of warranty, overheating, and potential fire.
Yes, you must cut slits in the taillight grommet and floor pan grommet to route the wiring harness. After routing, reseal both grommets with sealant.
You may need to drill a 3/32" pilot hole if no suitable existing grounding point (screw with nut) is available in the vehicle frame. Always check for hidden items before drilling.
Do not exceed the product rating (10-amp fuse) or the tow vehicle lamp load rating, whichever is lower. Exceeding either can cause overheating and potential fire.
Test for proper function by using a test light or connecting a properly wired trailer. All installation steps must be followed to ensure proper operation.
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