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Vehicle battery connection required
Includes fuse holder, battery connection wiring and other necessary wiring components
Includes fuse holder, battery connection wiring and other necessary wiring components
Warranty: One-Year Limited Warranty
Electrical System Type: 2W
Output Type: 4-Way Flat
Tail Light Circuits: 7.5 Amps
Turn and Brake Circuits: 5.0 Amps
Installation Difficulty: Professional
Installation Time Exact (Minutes): 45
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 Fusion (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 |
|---|---|---|
| 2013 - 2020 | Ford Fusion | Installation Time: 30-60 minutes |
Yes, the CURT 56351 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Ford Fusion (Part #BKDK56351) is designed to fit the 2013-2020 Ford Fusion.
The CURT 56351 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Ford Fusion (Part #BKDK56351) fits the following vehicles: 2013-2020 Ford Fusion. Always verify your specific year, make, and model before ordering.
The CURT 56351 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Ford Fusion (Part #BKDK56351) fits 2013-2020 Ford Fusion models. The 2020 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT 56351 Vehicle-Side Custom 4-Pin Trailer Wiring Harness, Fits Select Ford Fusion (Part #BKDK56351) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
The CURT 56351 is a powered converter lead system that converts a vehicle's taillight signals into trailer lighting signals. It is designed for passenger cars with 12-volt negative ground electrical systems and allows you to connect a trailer with a 4-flat connector to your vehicle's existing taillight wiring.
The CURT 56351 is designed for passenger cars with 12-volt negative ground electrical systems. The manual does not list specific vehicle makes, models or years. Check your vehicle owner's manual to confirm it has a 12-volt negative ground system, and contact CURT or a fitment database to verify compatibility with your specific vehicle before purchasing.
No. The CURT 56351 is designed only for 12-volt negative ground systems. Using it on any other electrical system will not function properly and may cause damage.
You will need: ratchet, wire stripper, 10mm socket, wire crimper, panel trim removal tool, and a cutting tool. These tools are required to remove fasteners, disconnect wiring, cut the grommet slit, and prepare wires for connection.
The kit includes: custom wiring harness with yellow, green, white and black wires; black converter box; provided double-sided tape for mounting the converter; provided sealant for sealing the grommet; provided screw and ring terminal for grounding; provided cable ties for securing loose wires; 4-flat dust cover; and a 15-amp fuse holder with fuse.
Yes. You must disconnect the negative battery terminal before beginning installation. Locate the battery using your vehicle owner's manual, disconnect the negative terminal, and fasten this wire down and away from the battery. Reconnect it only after all other installation steps are complete.
Open the trunk and remove all trunk floor coverings. Also remove the two fasteners securing the rear scuff panel and remove the scuff panel by pulling out on the bottom and then up, taking care not to damage the alignment tabs.
Starting on the driver side, remove the fasteners from the felt liner and pull back the felt liner to locate the vehicle taillight fasteners. Remove the 10mm fasteners securing the taillight. Remove the taillight by gently pulling rearward and out, taking care not to damage the alignment tabs. Behind the removed taillight, locate the vehicle taillight wiring harness connectors and separate them from the taillight housing, taking care not to damage the locking tabs.
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. Before cutting, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
You may need to drill a hole depending on available grounding points. Locate a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame. If no suitable point exists, drill a 3/32" pilot hole for the provided screw. The area should be free of rust, dirt and paint. Before drilling, check for miscellaneous items that may be hidden behind or under any surface to avoid damage and personal injury.
The custom wiring harness includes: yellow wire (left turn signal), green wire (right turn signal), white wire (ground), and black wire (power). The converter box also has a red brake wire that must be grounded if the converter is used as a powered module for a two-wire system.
Route the custom wiring harness end with the yellow wire out through the grommet opening and through the slit in the grommet. Insert the wiring harness end with yellow wire between the separated connectors. Make sure the connectors are fully inserted with locking tabs in place. Reseat the grommet and use the provided sealant to seal the cut in the grommet and around all the wires. Repeat this process on the passenger side using the harness end with the green wire.
Route the 12-gauge black power wire from the converter to the vehicle battery location, taking care to avoid any pinch points and hot or rotating components. Use an existing grommet, add a grommet, or use silicone to protect the power wire from sharp edges when passing through sheet metal. Secure the power wire to the vehicle chassis using the provided cable ties. Connect the ring terminal of the black wire to the positive (+) battery terminal. Install the fuse holder with 15-amp fuse only after all other steps are complete.
Secure the white ground wire using the ring terminal and provided screw to a suitable grounding point near the connector, such as an existing screw with nut in the vehicle frame. If no suitable point exists, drill a 3/32" pilot hole for the provided screw. The area should be free of rust, dirt and paint before attachment.
The battery connection must be fuse-protected with a 15-amp maximum fuse. Exceeding this rating can cause loss of warranty, overheating and potential fire. Install the fuse only after all other installation steps are complete.
Signal circuits (left and right turn): 5.0 amps per side. Tail/Running circuits: 7.5 amps total. Do not exceed the product rating or the tow vehicle lamp load rating, whichever is lower.
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. Failure to mount the box in a protected area can cause loss of warranty, product failure, overheating and potential fire.
When not in use, roll up the 4-flat connector and store it in a convenient, out-of-the-way location inside the trunk. When in use, route the 4-flat to the center of the vehicle and out of the trunk.
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. Test for proper function by using a test light or connecting a properly wired trailer.
Periodic inspection of all wires and connections should be performed to ensure there is no visible damage or loose connections. This helps maintain proper function and prevent electrical issues.
The CURT 56351 is designed for passenger cars with 12-volt negative ground electrical systems. Verify your vehicle's electrical system type in the owner's manual and confirm fitment with CURT or a fitment database before purchasing.
You will need: ratchet, wire stripper, 10mm socket, wire crimper, panel trim removal tool, and cutting tool.
Yes, you must disconnect the negative battery terminal before beginning installation and reconnect it only after all other steps are complete.
Drilling may be required to ground the white wire if no suitable existing grounding point is available. A 3/32" pilot hole is drilled for the provided screw. Cutting the grommet slit is also required.
The battery connection must be fuse-protected with a 15-amp maximum fuse. Exceeding this rating can cause loss of warranty, overheating and potential fire.
Mount the converter box in a flat, clean, protected area away from spray and debris from the rear wheels using the provided double-sided tape. Failure to do so can cause loss of warranty, product failure, overheating and potential fire.
Test for proper function by using a test light or connecting a properly wired trailer to verify all signals are working correctly.
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