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2021 - 2023 Ford F-150
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Complete CURT Class 3 2" trailer hitch and 5-flat wiring kit (with 4-way to 5-way adapter for surge brakes) engineered for the 2021 - 2023 Ford F-150 w/ LED Tailights Excluding factory receiver or Police Responder. 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 your task at hand -- whether it's launching that boat before daybreak, setting up your camper before the rush or getting a final load to the dump before close -- CURT class 3 trailer hitches offer the strength needed for serious towing. They make it easy to hitch up and Bring It, offering a vehicle-specific fit and the weight capacity to handle a variety of trailers. Custom class 3 hitches are the most common type of receiver hitch for pickup trucks and SUVs. Because of their weight range, they are also found on full-size cars, crossovers and minivans. Each custom-fit class 3 hitch package is made for vehicle-specific mounting. This particular kit fits certain years of the Ford F-150 (see application info to verify vehicle compatibility). It provides a weight carrying capacity of 6,000 lbs. GTW and 900 lbs. TW. It is also compatible with a weight distribution hitch for level towing and a rating of 10,000 lbs. WD and 1,000 lbs. WDTW. CURT class 3 trailer hitches are typically used to attach and haul utility trailers, boat trailers, campers, snowmobile or ATV haulers and more (NOTE: Never exceed the lowest-rated towing component). Each class 3 hitch has a 2" receiver tube and is tested in accordance with SAE J684 for safety. To ensure that CURT class 3 receiver hitches have what it takes for serious trailering, they are designed using a hands-on approach and are constructed with rugged, high-strength steel and precise welding. We also protect our class 3 hitches in a co-cured finish of liquid A-coat and black powder coat for superior resistance to rust, chipping and UV damage.
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 Ford F-150 with LED taillights (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 - 2023 | Ford F-150 | w/ LED Tailights Excluding factory receiver or Police Responder |
Yes, the 21 - 23 Ford F-150 w/ LED Tailights Excluding factory receiver or Police Responder Curt 2" Class 3 Trailer Tow Hitch + 4-way Wiring Kit 13475 (Part #5W-CHW-1014) is designed to fit the 2021-2023 Ford F-150.
The 21 - 23 Ford F-150 w/ LED Tailights Excluding factory receiver or Police Responder Curt 2" Class 3 Trailer Tow Hitch + 4-way Wiring Kit 13475 (Part #5W-CHW-1014) fits 2021-2023 Ford F-150 models. The 2023 model year is the last year covered by this part number. For newer models, check for an updated version.
The 21 - 23 Ford F-150 w/ LED Tailights Excluding factory receiver or Police Responder Curt 2" Class 3 Trailer Tow Hitch + 4-way Wiring Kit 13475 (Part #5W-CHW-1014) fits the following vehicles: 2021-2023 Ford F-150. Always verify your specific year, make, and model before ordering.
The 21 - 23 Ford F-150 w/ LED Tailights Excluding factory receiver or Police Responder Curt 2" Class 3 Trailer Tow Hitch + 4-way Wiring Kit 13475 (Part #5W-CHW-1014) Refer to the included instructions for installation details. Basic hand tools are typically all you need.
The CURT 13475 has a gross trailer weight (GTW) capacity of 6,000 lbs. and a tongue weight (TW) capacity of 900 lbs. If using weight distribution, the weight distribution (WD) capacity is 10,000 lbs. with a WD tongue weight (WDTW) of 1,000 lbs. Never exceed your vehicle manufacturer's recommended towing capacity.
Yes. The installation requires the spare tire to be lowered before beginning. After installation is complete, the spare tire is raised back into position in Step 6.
You will need: a ratchet, torque wrench, 10mm socket, 15/16" socket, 13mm socket, and masking tape. A tools reference guide is available at curtmfg.com/trailer-hitch-installation.
The kit includes: 2 U-shaped spacers (3/16" x 1" x 2"), 6 square-hole spacers (3/8" x 1-1/4" x 2-1/2"), 4 carriage bolts (5/8"-11 x 1-3/4", grade 8), 4 serrated-flange nuts (5/8"-11, grade 8), 4 fishwires (5/8"), and 1 flange bolt (M8-1.25 x 25mm, CL10.9).
If a grounding cable is present on the rear of the passenger side frame rail, it must be temporarily removed using a 10mm socket in Step 1. The fastener should be returned to the vehicle owner. After the hitch is installed, the grounding cable is reinstalled using the provided M8 flange bolt in Step 5.
If present, a harness plug is located on the driver side frame rail and must be pulled out in Step 2 before installation. After the hitch is installed, the harness plug is pushed back into the 1" hole on the hitch plate on the driver side in Step 5.
Fishwire is a tool used to guide hardware through the vehicle frame rails. Insert the coiled end of the fishwire through the hitch mounting hole in the frame rail and out the access hole. Pass the coiled end through a spacer and thread a bolt into the coil. Kink the wire to keep the spacer separate from the bolt. Pull the fishwire, spacer, and bolt through the frame and out the mounting hole. This prevents loss of bolts or spacers inside the frame rail.
In Step 4, two 5/8" carriage bolts are fishwired through either an access hole or the end of the frame on each side (for a total of 4 carriage bolts). The hardware is left in the frame with the fishwires attached until Step 5, when the hitch is raised into position and the fishwires are pulled to position the bolts.
In Step 3, U-shaped spacers are taped into the recess in the frame at the rearward most holes on both sides of the vehicle.
All 5/8" fasteners must be torqued to 180 lb-ft in Step 6 after the hitch is raised into position and the serrated flange nuts are loosely installed.
The grounding cable is reinstalled using the provided M8 flange bolt (M8-1.25 x 25mm, CL10.9) in Step 5 after the hitch is installed.
Safety glasses should be worn at all times while installing this product. Never exceed your vehicle manufacturer's recommended towing capacity. Proper tools will improve the quality of installation and reduce the time required.
Periodic inspection of the trailer hitch should be performed to ensure all mounting hardware remains tight and structural components are secure.
Yes, the spare tire must be lowered before installation and raised back into position after the hitch is installed.
A torque wrench is essential, along with a ratchet, 10mm socket, 15/16" socket, 13mm socket, and masking tape.
All 5/8" fasteners must be torqued to 180 lb-ft.
The tongue weight capacity is 900 lbs. (or 1,000 lbs. if using weight distribution).
Yes, safety glasses should be worn at all times while installing this product.
No, the installation difficulty level is rated as Easy, though this may vary depending on installer expertise, vehicle condition, and proper tools and equipment.
The Curt 56481 is a powered converter wiring harness that converts vehicle taillight signals to a 4-flat trailer connector. It allows you to connect a trailer with functioning lights to your truck, so the trailer lights operate in sync with your vehicle's brake, turn, and running lights. The system includes a converter box, wiring harness with color-coded wires (yellow for left turn, green for right turn, red for brake, brown for taillight), and a 4-flat connector for the trailer.
The Curt 56481 is designed for trucks and is compatible with 12-volt negative ground electrical systems only. The manual shows wiring locations for trucks (T1–T5) behind taillight housings and rear bumper areas. However, the manual does not specify compatibility by year, make, model, bed length, cab style, or drivetrain. Contact Curt Manufacturing or consult a fitment database to confirm compatibility with your specific vehicle.
No. The Curt 56481 is designed for 12-volt negative ground systems only. Do not use this converter on 24-volt systems or positive ground systems.
You will need: ratchet, drill, 8mm socket, 3/32" drill bit, socket extension, fishwire (or equivalent such as a cut-up wire hanger, stiff wire, rope or string), and a cutting tool. Proper tools will improve installation quality and reduce time required.
The kit includes: a powered converter box, color-coded wiring harness (yellow, green, red, brown, white), a 4-flat connector with dust cover, double-sided tape for mounting the converter box, cable ties (zip ties) for securing wires, a ground screw with ring terminal, a fuse holder with 10-amp fuse, and butt connectors. Refer to the Hardware Photo on page 1 for visual identification.
Yes. You must disconnect the negative battery terminal before beginning installation. Locate the battery in the engine compartment on the passenger side, disconnect the negative terminal, and fasten the wire down and away from the battery. Reconnect the negative terminal only after all other installation steps are complete and before installing the 10-amp fuse.
Yes. You must remove both taillights to access the taillight wiring connectors. Open the tailgate and use an 8mm socket to remove the two bolts securing each taillight in place. Carefully remove each taillight straight back from the vehicle, locate the wiring connectors, and separate them from the taillight housing without damaging the locking tabs. Set the taillights aside in a safe place.
Fishwire is a method to push or pull electrical wire through a blind hole. Make sure the wire is long enough to stick out on the other side. Insert the fishwire through the blind hole and locate it on the other side. Use tape to secure the harness to the fishwire and pull back up. If the fishwire or harness gets hung up, you may need to push back down, wiggle it around, or twist the wire to loosen it. Fishwire can be anything from a cut-up wire hanger, stiff wire, rope, or string depending on what is needed.
1. Drop the fishwire down into the taillight cavity opening on the driver side. 2. From under the vehicle, attach the custom wiring end with the yellow wire to the fishwire and pull up into the taillight cavity. 3. Attach the custom wiring harness to the vehicle taillight harness. 4. Attach the factory harness to the taillight and the T-end in the custom wiring harness. 5. Route the green wire over to the passenger side, zip-tying as needed along the rear bumper. 6. Repeat the process on the passenger side using the green wire.
Locate a flat spot on the vehicle and adhere the black converter box using the provided double-sided tape and/or zip ties. The manual does not specify exact mounting locations, so choose a protected area away from heat sources, moving parts, and moisture.
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 remove rust and paint. Secure the white ground wire with the 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.
Route the 4-flat along the rear bumper, using cable ties as needed to secure any loose wires. Mount the 4-flat near the receiver tube. Install the provided 4-flat dust cover to help prevent corrosion.
Drilling is required only if you do not have an existing screw or bolt suitable for grounding the white ground wire. You will need to drill a 3/32" pilot hole in the vehicle frame. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. The area must be free from rust, dirt, and paint.
Drill a 3/32" pilot hole for the ground screw. 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.
No permanent modifications are required. The converter box is mounted using double-sided tape and/or zip ties. The only drilling required is a 3/32" pilot hole for the ground wire, which is a minor modification. All other components are routed along existing surfaces (rear bumper, taillight cavities) without cutting, trimming, or welding.
Signal circuits (left and right turn): 5.0 amps per side. Tail/Running circuits: 7.5 amps total. The battery connection must be fuse-protected with a 10-amp maximum fuse. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. Exceeding the product rating can cause loss of warranty, overheating, and potential fire.
Use an 8mm socket to remove the two bolts securing each taillight in place. A socket extension may be helpful depending on the taillight design.
Yellow = Left turn signal. Green = Right turn signal. Red = Brake signal. Brown = Taillight (running light). White = Ground. These color-coded wires connect to the corresponding circuits in your vehicle's taillight harness and the trailer connector.
Route the black 12-gauge power wire from the converter 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 wire from sharp edges. Connect the power wire to the positive (+) battery terminal using a ring terminal and butt connector. The battery connection must be protected by a 10-amp fuse (installed in the fuse holder after all other steps are complete). Disconnect the negative battery terminal before wiring the power wire.
Use a 10-amp fuse maximum. The battery connection must be fuse-protected with a 10-amp max fuse. Install the fuse after all other installation steps are complete. Exceeding this rating can cause loss of warranty, overheating, and potential fire.
T1: Behind driver side taillight housing. T2: Behind passenger side taillight housing. T3: Behind driver side rear bumper. T4: Behind center of rear bumper fascia. T5: Behind passenger side rear bumper. These locations are where you will find the vehicle's taillight wiring connectors to connect the Curt 56481 harness.
If the converter is used as a powered module for a two-wire system, the red brake wire must be grounded. Consult the converter documentation or contact Curt Manufacturing for specific instructions on two-wire system configuration.
Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury. 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. Route the power wire to the battery location taking care to avoid pinch points and hot or rotating components. Disconnect the negative battery terminal before wiring the power wire. Do not exceed the product rating or tow vehicle lamp load rating. Secure the power wire to the vehicle chassis using the provided cable ties.
Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower. The manual does not specify a maximum lamp load rating for the converter itself. Consult your vehicle owner's manual or contact the vehicle manufacturer for your specific tow vehicle lamp load rating.
Once the custom harness is installed, verify that it is functioning by attaching the 4-flat connector to any trailer with functioning lights. The taillights on the vehicle to be towed should function along with the taillights on the vehicle that is powering them. You can also use a test light to verify proper function of each circuit (left turn, right turn, brake, and running lights).
Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections. Check the 4-flat connector and dust cover regularly to prevent corrosion. Inspect cable ties and mounting tape to ensure all components remain secure.
Yes. Install the provided 4-flat dust cover to help prevent corrosion. The dust cover protects the connector from moisture and environmental damage.
The Curt 56481 is designed for trucks with 12-volt negative ground systems. Confirm compatibility with your specific year, make, and model by contacting Curt Manufacturing or consulting a fitment database, as the manual does not list specific vehicle applications.
You will need: ratchet, drill, 8mm socket, 3/32" drill bit, socket extension, fishwire (or equivalent), and a cutting tool. All required hardware and components are included in the kit.
Yes. Disconnect the negative battery terminal before beginning installation and reconnect it only after all other steps are complete and before installing the 10-amp fuse.
Use a 10-amp fuse maximum. The battery connection must be fuse-protected with a 10-amp max fuse, installed after all other steps are complete.
Yellow = Left turn, Green = Right turn, Red = Brake, Brown = Taillight (running light), White = Ground. These connect to the corresponding circuits in your vehicle's taillight harness.
If the fishwire or harness gets hung up on something, you may have to push back down, wiggle it around, or twist the wire to loosen it from what it is hung up on. Ensure the fishwire is long enough to stick out on both sides before pulling.
Verify that the harness is functioning by attaching the 4-flat connector to a trailer with functioning lights. The taillights on the vehicle to be towed should function along with the taillights on the vehicle powering them. Check all wire connections for damage or loose connections, verify the 10-amp fuse is installed and intact, confirm the ground wire is securely attached to a clean, rust-free frame point, and ensure the power wire is properly connected to the positive battery terminal with a ring terminal.
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