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| Battery-Powered | Yes |
| Converter Type | Circuit Protected and Powered |
| Electrical System Type | 3W |
| Finish | N/A |
| Material | Blank |
| Mount Type Description | Blank |
| Output Type | 4-Way Flat |
| Side Application Type Description | Blank |
| T-Connector Location | S1,S2 |
| 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 888-634-94941 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2010 - 2013 | Ford Transit Connect | Excluding electric models |
Yes, the 10 - 13 Ford Transit Connect Excluding electric models CURT Trailer Brake Controller 7-Way Upgrade Kit 7WK998 (Part #7WK998) is designed to fit the 2010-2013 Ford Transit Connect.
The 10 - 13 Ford Transit Connect Excluding electric models CURT Trailer Brake Controller 7-Way Upgrade Kit 7WK998 (Part #7WK998) fits 2010-2013 Ford Transit Connect models. The 2013 model year is the last year covered by this part number. For newer models, check for an updated version.
The 10 - 13 Ford Transit Connect Excluding electric models CURT Trailer Brake Controller 7-Way Upgrade Kit 7WK998 (Part #7WK998) fits the following vehicles: 2010-2013 Ford Transit Connect. Always verify your specific year, make, and model before ordering.
The 10 - 13 Ford Transit Connect Excluding electric models CURT Trailer Brake Controller 7-Way Upgrade Kit 7WK998 (Part #7WK998) 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 Curt 56090 is a custom wiring harness that integrates with your vehicle's taillight wiring to provide trailer lighting control. It includes a converter box that processes signals from your vehicle's taillights and outputs a 4-flat connector for trailer use. The harness is designed for SUVs, mini and full-sized vans, specifically tested on the Ford Transit Connect.
Yes, the Curt 56090 is designed for the Ford Transit Connect. The manual lists this vehicle as the representative application for the SUVs, Mini & Full-Sized Vans category. For other vehicle models or years, consult the vehicle manufacturer or Curt Manufacturing to confirm compatibility.
The harness is rated for 3.0 amps per side on signal circuits (brake and turn signals) and 6.0 amps total on tail and running circuits (parking and tail lights). Do not exceed these ratings or your vehicle's tow lamp load rating, whichever is lower, as exceeding the product rating can cause loss of warranty, overheating and potential fire.
You will need: Phillips screwdriver, flat blade screwdriver, panel trim removal tool, wire stripper, wire crimper, and cutting tool. These tools are required to remove taillight assemblies, separate connectors, route wiring, cut the grommet, and prepare ground connections.
The harness includes: the custom wiring harness with yellow and green wire ends, a black converter box, a white ground wire with ring terminal, a provided screw for grounding, double-sided tape for mounting the converter box, a 4-flat dust cover, and cable ties for securing loose wires. The manual also references an included CME-PCL-INS sheet for battery power wire routing details.
The manual does not explicitly state whether the battery must be disconnected before installation. However, the instructions require routing a black power wire from the vehicle battery with a 10-amp fuse protection. Consult your vehicle owner's manual or a qualified technician before working with battery connections.
Open the rear cargo doors. On both sides of the vehicle, locate two plastic wing nuts securing the taillights in place. Remove the taillight assembly to access the vehicle taillight wiring harness connectors. Take care not to damage the locking tabs when separating the connectors from the taillight housing.
Insert the custom wiring harness end with the yellow wire between the separated taillight connectors. Make sure the connectors are fully inserted with locking tabs in place. Repeat this process on the passenger side using the green wire end of the harness after routing it through the grommet.
Drilling may be required for the ground connection. You will need to locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame. If no suitable existing screw is available, you must drill a 3/32" pilot hole for the provided screw. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and/or personal injury.
Drill a 3/32" pilot hole for the provided ground screw. The grounding point should be located near the connector on a suitable flat spot in the vehicle frame, and the area should be free of rust, dirt and paint before securing the white ground wire using the ring terminal.
Yes. Locate the grommet behind the taillight where the vehicle taillight wiring passes through from inside the cabin to the taillight. Remove the grommet and cut a slit large enough to route the custom wiring harness through. After routing the wires, reseat the grommet using the provided sealant to seal the cut in the grommet and around all the wires.
Route the custom wiring harness end with the green wire out through the grommet opening and through the slit in the grommet. Continue to route the green wire out the bottom side of the vehicle along the existing wiring harness to the passenger side, then through the passenger side grommet. The black power wire should be routed from the vehicle battery as shown on the included CME-PCL-INS sheet. When not in use, roll up the 4-flat connector and store it in a convenient, out-of-the-way location inside the trunk.
Locate a flat spot inside the vehicle near the taillight and adhere the black converter box using the provided double-sided tape. The converter box should be positioned so that the wiring can be routed cleanly and the 4-flat connector can be accessed when needed.
Use the provided cable ties to secure any loose wires. This helps prevent wires from becoming tangled, damaged, or interfering with vehicle operation. Route the 4-flat connector to the center of the vehicle and out of the trunk when in use, and roll it up and store it in a convenient, out-of-the-way location inside the trunk when not in use.
The battery connection must be fuse-protected with a 10-amp maximum fuse. Exceeding this rating can cause loss of warranty, overheating and potential fire. Do not exceed the product rating or your tow vehicle lamp load rating, whichever is lower.
The harness has three main wires: yellow wire (used on the driver side taillight connector), green wire (used on the passenger side taillight connector and routed along the vehicle frame), and white ground wire (connected to a grounding point on the vehicle frame using the provided ring terminal and screw). The black power wire is routed from the vehicle battery as detailed on the included CME-PCL-INS sheet.
After installation, test for proper function by using a test light or connecting a properly wired trailer. This confirms that the signal circuits (3.0 amps per side) and tail/running circuits (6.0 amps total) are functioning correctly. All steps must be followed to ensure the wiring harness will function properly.
Reinstall all items removed during installation, including the taillight assemblies and any trim panels. Install the provided 4-flat dust cover to help prevent corrosion. Test for proper function using a test light or a properly wired trailer. Secure any loose wires with the provided cable ties.
Do not exceed the product rating or your tow vehicle lamp load rating, whichever is lower. The product is rated for 3.0 amps per side on signal circuits and 6.0 amps total on tail/running circuits. Exceeding these ratings can cause loss of warranty, overheating and potential fire. Check your vehicle owner's manual or contact the vehicle manufacturer for your specific tow vehicle lamp load rating.
Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and/or personal injury. The grounding area should be free of rust, dirt and paint. If using an existing screw with nut in the vehicle frame, no drilling is required; only if no suitable existing screw is available should you drill a 3/32" pilot hole.
The Curt 56090 is designed for the Ford Transit Connect and other SUVs, mini and full-sized vans. Confirm your specific vehicle model with Curt Manufacturing or your vehicle's owner's manual before purchasing.
Drilling may be required for the ground connection if no existing screw with nut is available on the vehicle frame. If drilling is needed, you will drill a 3/32" pilot hole. Cutting the grommet is also required to route the wiring harness.
The battery connection must use a 10-amp maximum fuse. Do not exceed this rating as it can cause loss of warranty, overheating and potential fire.
Signal circuits are rated for 3.0 amps per side; tail/running circuits are rated for 6.0 amps total. Do not exceed these ratings or your vehicle's tow lamp load rating, whichever is lower.
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.
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