Our in-house experts typically reply within one business day.
CURT
Verify Fitment
Select your vehicle to confirm this part fits.
2022 - 2024 Kia EV6
Confirmed to Fit
Always the correct part
We know our products
Quality Products
Free Shipping!
Always the correct part
We know our products
Quality Products
Free Shipping!
On Sale Today
Original price was $270.80. Current price is $245.85.You save $24.95 (9%)
Free Shipping
Ships free on all orders
Authorized Dealer
Quick Ship
In stock and ready to ship — order now!
FREE ShippingFREE SHIPPING
Estimated delivery Mon, Aug 10 - Thu, Aug 13
Order before 2 PM EST Monday–Friday for same-day processing
Guaranteed safe & secure checkout
| Converter Type | Circuit Protected and Powered |
| Electrical Component Location | Vehicle / Trailer |
| Electrical Package Type | Packaged |
| Electrical System Type | 3W |
| Material | THERMOPLASTIC RUBBER |
| Mount Type Description | Not Applicable |
| Side Application Type Description | Not Applicable |
| T-Connector Location | P3,P4 |
| Tail Light Circuits | 6.0 Amps |
| Turn and Brake Circuits | 3.0 Amps |
| Warranty | One-Year Limited Warranty |
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 - 2024 | Kia EV6 | — |
The 22 - 24 KIA EV6 CURT Trailer Brake Controller 7-Way Upgrade Kit 7WK1587 (Part #7WK1587) fits 2022-2024 Kia EV6 models. The 2024 model year is the last year covered by this part number. For newer models, check for an updated version.
The 22 - 24 KIA EV6 CURT Trailer Brake Controller 7-Way Upgrade Kit 7WK1587 (Part #7WK1587) fits the following vehicles: 2022-2024 Kia EV6. Always verify your specific year, make, and model before ordering.
Yes, the 22 - 24 KIA EV6 CURT Trailer Brake Controller 7-Way Upgrade Kit 7WK1587 (Part #7WK1587) is designed to fit the 2022-2024 Kia EV6.
The 22 - 24 KIA EV6 CURT Trailer Brake Controller 7-Way Upgrade Kit 7WK1587 (Part #7WK1587) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The kit includes: one 30 amp auto-resetting circuit breaker, two #10 ring terminals, two 3/8" ring terminals, two 1/2" ring terminals, three 12-10 gauge butt connectors, 10 feet of 10 ga black/white duplex wire, 20 feet of 10 ga blue cross-linked wire, and eight 8.5" cable ties.
Yes, but with a critical difference: these vehicles require the stop signal wire to be spliced to the light green wire on the turn signal harness connector under the dash, not to the brake pedal switch. Do NOT connect to the red wire with green stripe, as serious damage may occur. All other vehicles connect to the brake pedal switch instead.
You will need: a test light, wire stripper/cutter, crimp tool, and 3/8" box end wrench. The test light is used to identify the cold (switched) side of the brake pedal switch.
Yes. The manual cautions to disconnect the tow vehicle's negative battery cable before installation. Reconnect it only in the final step after all wiring is complete.
Mount the 30 amp circuit breaker near the tow vehicle's positive battery terminal. This keeps the power wire run as short as possible and protects the circuit.
Use 10 gauge (10 ga) black wire from the duplex wire included in the kit. Strip 3/8" of insulation from each end. Crimp a #10 ring terminal to the end that attaches to the circuit breaker stud labeled 'BAT', and a 3/8" or 1/2" ring terminal (sized to fit your battery terminal) to the end that attaches to the positive battery terminal.
Feed the 10 ga duplex wire from the brake controller in the cockpit through the firewall into the engine compartment toward the battery. Cut to length as needed. At the battery end, crimp a 3/8" or 1/2" ring terminal to the white wire and a #10 ring terminal to the black wire. Attach the black wire to the circuit breaker stud labeled 'AUX' and tighten the nut with a 3/8" box end wrench.
When passing the duplex wire through the firewall into the engine compartment, use an existing grommet, add a new grommet, or fill the hole with silicone rubber to insulate and protect the wire. The same protection applies when passing the blue cross-linked wire through any sheet metal at the rear of the vehicle.
In the cockpit, attach the black duplex wire to the brake controller's battery wire (typically black) and the white duplex wire to the brake controller's ground wire (typically white). Use either one of the supplied yellow butt connectors or solder the leads together and insulate with heat shrink tubing.
Locate the brake pedal switch on the back side of the vehicle's brake pedal. Use a test light or volt meter to identify the 'cold' or switched side—this terminal will only show power when the brake pedal is depressed. Attach the stop signal wire (typically red) from the brake controller to the cold side of the switch using a wire tap.
Locate the semi-circle turn signal harness connector on the steering column under the dash. It has two rows of wires: a row of four and a row of seven. Attach the stop signal wire (typically red) from the brake controller to the light green wire using a wire tap. Do NOT connect to the red wire with green stripe, as serious damage may occur.
Feed the 10 ga blue cross-linked wire from the brake controller to the trailer connector at the rear of the vehicle, taking up any slack in the wire. When passing through any sheet metal, use an existing grommet, add a new grommet, or fill the hole with silicone rubber to protect the wire.
Attach the blue cross-linked wire to the brake controller's electric brake wire (typically blue) using one of the supplied yellow butt connectors or by soldering and insulating with heat shrink tubing. At the rear of the vehicle, trim any loose blue wire and attach it to the trailer connector's electric brake terminal. Refer to the trailer connector's wiring diagram for the correct terminal location.
Secure any loose wires with the cable ties provided. Connect the black power wire from the circuit breaker to the positive side of the battery. Connect the white ground wire from the brake controller to the negative side of the battery. Finally, reconnect the tow vehicle's negative battery cable to the battery.
The circuit breaker is 30 amps and auto-resetting. It must be mounted near the positive battery terminal and connected directly to the positive battery terminal via the included black 10 gauge wire.
Use a 3/8" box end wrench to tighten the nuts on the circuit breaker studs labeled 'BAT' and 'AUX'.
The kit includes 10 feet of 10 gauge black/white duplex wire for the battery and brake controller connections, and 20 feet of 10 gauge blue cross-linked wire for the electric brake signal to the trailer connector.
Black wire connects to the positive battery and circuit breaker. White wire connects to the brake controller ground and negative battery. Red wire is the stop signal wire from the brake controller. Blue wire is the electric brake signal wire. The manual notes these are 'typically' these colours but recommends confirming with your brake controller documentation.
Yes. You can solder the leads together and insulate with heat shrink tubing as an alternative to using the supplied yellow butt connectors. This applies to connections between the duplex wire and the brake controller wires, and between the blue cross-linked wire and the brake controller.
The black power wire must connect directly to the positive battery terminal via the 30 amp circuit breaker. Connecting to the fuse panel or any other accessory wiring may damage vehicle wiring and cause trailer brake failure. The circuit breaker protects the circuit and must be the only protection between the battery and the brake control system.
Do NOT connect the stop signal wire to the red wire with green stripe on the turn signal harness. Serious damage may occur. Connect only to the light green wire. Also, do not connect to the brake pedal switch on these vehicles; use the turn signal harness instead.
The kit is universal but requires an existing trailer connector and brake controller. 1989-1991 Ford E & F-Series with ABS use a different stop signal connection (turn signal harness instead of brake pedal switch). Consult your brake controller documentation for compatibility.
No drilling is required. The kit connects to existing components: the battery, brake controller, brake pedal switch (or turn signal harness on 1989-1991 Ford E & F-Series with ABS), and trailer connector.
Do NOT connect the stop signal wire to the red wire with green stripe on the turn signal harness—serious damage may occur. Connect to the light green wire instead, and do not use the brake pedal switch.
Connecting to the fuse panel or accessory wiring may damage vehicle wiring and cause trailer brake failure. The 30 amp circuit breaker must be the only protection between the battery and the brake control system.
The 4-way flat electrical adapter converts a vehicle's 4-way flat trailer connector to other trailer connector types (6-way round, 7-way RV blade, or dual 4-way flat). This allows you to tow trailers with different connector styles. Single-output models (57184, 57183, 57185, 57626, 57676) convert to one connector type; dual-output models (57604, 57624, 57672, 57674, 57102) provide two different connector outputs simultaneously.
Yes. Your vehicle must be equipped with a 4-way flat trailer connector. If your vehicle does not have one, you will need to install a custom wiring harness or other 4-way flat trailer connector before installing this adapter.
Both convert a 4-way flat connector to a 7-way RV blade. The difference is that 57185 includes a mounting bracket, while 57184 does not.
Both convert a 4-way flat connector to a 6-way round. The difference is that 57626 includes a mounting bracket, while 57183 does not.
Curt offers three dual-output models that provide both a 4-way flat and a 7-way RV blade output: part numbers 57672, 57674, and 57102. All three include a mounting bracket.
Curt offers two dual-output models that provide both a 4-way flat and a 6-way round output: part numbers 57604 and 57624. Both include a mounting bracket.
You will need: a 1/8" drill bit, drill, Phillips screwdriver, wire stripper, cutting tool, terminal crimpers, and a test light. The manual also lists three self-tapping screws (#10 - 1/2") as required, though these are not included with the product.
No. The three self-tapping screws (#10 - 1/2") used to attach the mounting bracket are not included and must be purchased separately.
Mount the combination harness in a location on the tow vehicle that is within reach of the trailer's wiring harness and near the center of the vehicle. The mounting bracket (if included) should be attached to the vehicle's bumper or other suitable surface.
Yes. You must drill two 1/8" holes: one for the grounding point and one (or more) for the mounting bracket. Before drilling, you must check for brake lines, fuel lines, wiring and other components that may be hidden behind or under the surface to avoid damage.
No. You must never attach the mounting bracket directly to the hitch by cutting, welding or drilling into the hitch. Mount it to the vehicle's bumper or other suitable surface instead.
The adapter uses four wires: Yellow (auxiliary or back-up lights), Blue (electric brakes), Black (positive power with appropriate inline fuse), and White (ground). All wires except black and white must be connected using 12 gauge (minimum) wire and butt connectors to the appropriate vehicle functions.
The white wire is the ground connection. It must be attached with a ring terminal to a 1/8" hole drilled in a suitable grounding point on the vehicle using a #10 - 1/2" self-tapping screw. This ground connection is required for the harness to work properly. The white wire on the vehicle's 4-way flat connector does not support the ground (-) functions of the combination harness.
Yes. The black wire (positive power) must be connected with an appropriate inline fuse. The manual does not specify the fuse amperage rating.
Use 12 gauge (minimum) wire for all connections. The manual specifies this minimum gauge for the remaining wires (yellow, blue, and black) when connecting to appropriate vehicle functions.
Failing to properly ground the product can cause loss of warranty, overheating and potential fire. The white wire must be securely attached to a clean grounding point using a #10 - 1/2" self-tapping screw in a 1/8" hole. The area must be clean of dirt, debris or undercoating.
Before drilling, you must check for brake lines, fuel lines, wiring and any other components that may be hidden behind or under the surface. Drilling into these components can cause damage and personal injury.
Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. Exceeding either rating can cause damage or unsafe operation.
Confirm proper function with a test light or by using a properly functioning trailer. This verifies that all connections are working correctly before towing.
Secure any loose wires using cable ties or equivalent product to prevent them from moving, catching on components, or becoming damaged.
Your vehicle must have a 4-way flat trailer connector. If it does not, you will need to install a custom wiring harness or other 4-way flat connector first. Check the part number table to confirm the adapter converts to the connector type you need.
You must purchase three #10 - 1/2" self-tapping screws for the mounting bracket. You will also need an appropriate inline fuse for the black (positive power) wire; the manual does not specify the amperage.
Yes, you must drill two 1/8" holes: one for grounding and one for the mounting bracket. Before drilling, check for brake lines, fuel lines and wiring behind the surface. Never drill into the hitch.
Yellow = auxiliary/back-up lights; Blue = electric brakes; Black = positive power (needs inline fuse); White = ground (must be properly grounded or warranty is void and fire risk exists). Use 12 gauge minimum wire and butt connectors.
Proper grounding of the white wire is critical. Failing to ground it properly can cause loss of warranty, overheating and fire. The grounding point must be clean of dirt, debris and undercoating.
Test with a test light or by using a properly functioning trailer to confirm all connections work. Secure loose wires with cable ties.
The Curt 56499 is a powered converter system that enables trailer wiring functionality on passenger cars. It converts the vehicle's electrical signals to power a trailer's lighting and braking systems. The system includes a converter module, wiring harnesses with color-coded leads (yellow for left turn, green for right turn, red for brake, brown for taillight), a 4-flat connector for trailer attachment, and grounding hardware. It is designed for 12-volt negative ground vehicles only.
The Curt 56499 is designed for passenger cars with 12-volt negative ground electrical systems. The manual states it is for 'Passenger Cars (P)' and specifies that the converter system must be used only on 12-volt negative ground systems. The manual does not list specific vehicle makes, models, or years. Consult the product fitment database or contact Curt Manufacturing for compatibility with your specific vehicle.
No. The manual explicitly states: 'This converter system is to be used only on 12 volt negative ground systems.' Do not attempt installation on positive ground vehicles, as it will not function correctly and may cause electrical damage.
The following tools are required: panel removal tool, wire cutter, ratchet, wire stripper, 10mm socket, crimping tool, and flathead screwdriver. The manual also recommends an abrasive pad or paper to remove rust and paint from the grounding point, and notes that proper tools will improve installation quality and reduce time required.
The kit includes: two converter modules (one with yellow wire, one with black converter box), a 4-flat connector, a 4-flat dust cover, double-sided tape for mounting modules, a white ground wire with ring terminal, a black power wire, cable ties for securing wires, a ground screw, a fuse holder with 15-amp fuse, and butt connectors. The manual shows a hardware photo but does not itemize every component; refer to the product packaging or contact Curt Manufacturing for a complete parts list.
Yes. The manual requires that you disconnect the negative battery terminal before wiring the power wire. Step 1 instructs you to remove the ground wire from the battery and fasten it down and away from the battery while completing the installation. The negative battery cable must remain disconnected until all other wiring steps are complete and the fuse is installed.
You must remove: the battery access panel (under the hood), the false floor in the rear hatch, one access door (pulled straight up), two threshold fasteners (using a flathead screwdriver), the threshold trim panel (using a trim tool), and four interior floor bolts (using a 10mm socket). You will also need to loosen both side panels to route wires between the panel and vehicle body. The manual notes that battery location may vary by vehicle.
Do not lay tools across the positive battery terminal (typically marked with red covers or a red '+' symbol), as this can cause a ground short resulting in sparks and/or electrical shocks. Disconnect the negative battery cable before wiring the power wire. Fasten the disconnected ground wire down and away from the battery during installation. Do not reconnect the battery until all wiring is complete and the 15-amp fuse is installed.
The yellow-wire module is mounted on the driver side. After routing the yellow wire behind the driver-side wall panel and connecting it to the taillight housing and factory wiring, locate a flat spot in the lower compartment and adhere the module using the provided double-sided tape. The manual does not specify an exact location beyond 'a flat spot in the lower compartment.'
The black converter box is mounted on the passenger side. Locate a flat spot near where the speaker sub is located and adhere the converter box using the provided double-sided tape. The manual does not specify an exact location beyond 'near where the speaker sub is located.'
On the driver side, locate the vehicle's taillight wiring connectors (which will be similar to those on the converter product). Separate the connectors from the taillight housing, taking care not to damage the locking tabs. Connect the yellow-wire housing to both the taillight housing and factory wiring. Repeat on the passenger side with the green-wire housing. The manual does not provide detailed connector specifications; if connectors do not match, contact Curt Manufacturing.
The wire color coding is: Yellow = Left turn, Green = Right turn, Red = Brake, Brown = Taillight. These colors are used on both the internal wiring harnesses and the 4-flat connector that attaches to the trailer.
Drilling may be required for the ground wire connection. Step 8 instructs you to locate a grounding point such as an existing screw or bolt in the vehicle frame, or drill a 3/32-inch pilot hole if no existing fastener is available. The area must be free from rust, dirt, and paint (use an abrasive pad or paper to clean it). Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
The pilot hole size is 3/32 inch. This hole is drilled only if no existing screw or bolt is available on the vehicle frame for the ground wire ring terminal. The area must be cleaned of rust, dirt, and paint before drilling.
No permanent modifications are required. The installation involves removing and reinstalling interior trim panels, accessing existing wiring connectors, and routing wires through existing interior spaces. The only potential drilling is for the ground wire connection (3/32-inch pilot hole), which uses an existing fastener if available. All removed interior components must be reinstalled after installation.
The signal circuits (left turn, right turn, and brake) are rated at 3.0 amps per side maximum.
The tail and running light circuits are rated at 6.0 amps total maximum.
The maximum fuse rating is 15 amps. The manual states: 'The battery connection must be fuse-protected, 15-amp max. Exceeding the product rating can cause loss of warranty, overheating and potential fire.' The fuse holder with 15-amp fuse is included and must be installed after all other wiring steps are complete.
The power wire must be 12 gauge (12 GA) or larger. The manual specifies: 'Route 12 GA wire to vehicle battery location, taking care to avoid any pinch points and hot or rotating components.'
Route the black power wire from the vehicle battery as shown on the 'Powered Converter Lead Instruction Sheet' (page 6 of the manual). The wire must be 12 gauge or larger. Take 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 wire from sharp edges. Secure the power wire to the vehicle chassis using the provided cable ties.
Locate a grounding point such as an existing screw or bolt in the vehicle frame. If no existing fastener is available, drill a 3/32-inch pilot hole. Clean the area of rust, dirt, and paint using an abrasive pad or paper. Secure the white ground wire (which has a ring terminal) to the vehicle body using the provided ground screw or an existing fastener. Before drilling, check for miscellaneous items hidden behind or under any surface to avoid damage and personal injury.
The ring terminal is a crimped connector at the end of the white ground wire that allows secure attachment to a vehicle frame fastener (screw or bolt). It provides a solid electrical connection to ground the converter system. The ring terminal is attached to the vehicle body using the provided ground screw or an existing fastener.
P3 is behind the driver side taillight housing, inside of trunk. P4 is behind the passenger side taillight housing, inside of trunk. These are the locations where the converter's yellow-wire and green-wire modules connect to the vehicle's factory taillight wiring connectors.
The manual does not specify a maximum towing load. It states: 'Do not exceed product rating or tow vehicle lamp load rating, whichever is lower.' Consult the vehicle owner's manual or contact the vehicle manufacturer for the vehicle's towing capacity and lamp load rating. Contact Curt Manufacturing for the product's maximum rating.
When in use, route the 4-flat connector with the center of the vehicle and out of the hatch to the trailer, staying clear of the hatch's latching mechanism. When not in use, roll up the connector and store it in a convenient, out-of-the-way location. Install the provided 4-flat dust cover to help prevent corrosion.
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 notes that all steps must be followed to ensure the product will function properly. Once installed, test for proper function before towing.
After installation, verify that all removed interior components are reinstalled, the negative battery terminal is reconnected, the 4-flat dust cover is installed, and all loose wires are secured with the provided cable ties. Test the system with a test light, 4-flat tester, or functioning trailer to confirm proper operation before towing.
Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections. The manual does not specify an inspection interval. Secure any loose wires with cable ties and ensure the 4-flat dust cover is in place to help prevent corrosion.
The Curt 56499 is designed for passenger cars with 12-volt negative ground electrical systems. Consult the product fitment database or contact Curt Manufacturing with your vehicle's year, make, and model to confirm compatibility.
You will need: panel removal tool, wire cutter, ratchet, wire stripper, 10mm socket, crimping tool, flathead screwdriver, and an abrasive pad or paper to clean the grounding point.
Yes. Disconnect the negative battery terminal before wiring the power wire and keep it disconnected until all wiring is complete and the 15-amp fuse is installed.
The maximum fuse rating is 15 amps. Exceeding this rating can cause loss of warranty, overheating, and potential fire.
The power wire must be 12 gauge (12 GA) or larger. Route it to avoid pinch points and hot or rotating components.
Verify that the 12-volt power wire is properly connected to the positive battery terminal with a ring terminal. Confirm that the 15-amp fuse is installed in the fuse holder. Check that the white ground wire is securely attached to a clean, rust-free grounding point on the vehicle frame. Inspect all wire connections to the taillight wiring connectors to ensure they are fully seated and the locking tabs are not damaged. Test the system with a test light, 4-flat tester, or functioning trailer. If the system still does not function, consult Curt Manufacturing.
Install the provided 4-flat dust cover on the connector when it is not in use. The dust cover helps prevent corrosion. When the connector is in use, route it with the center of the vehicle and out of the hatch to the trailer, staying clear of the hatch's latching mechanism. When not in use, roll up the connector and store it in a convenient, out-of-the-way location.
Total for 3 items:
$598.79$766.74
No reviews have been added for this product.