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CURT
Verify Fitment
Select your vehicle to confirm this part fits.
2005 - 2007 Ford F-250 Super Duty
Confirmed to Fit
2005 - 2007 Ford F-350 Super Duty
Confirmed to Fit
2005 - 2007 Ford F-450 Super Duty
Confirmed to Fit
2005 - 2007 Ford F-550 Super Duty
Confirmed to Fit





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Always the correct part
We know our products
Quality Products
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Warranty: One-Year Limited Warranty
Installation Difficulty: Novice
Installation Time Exact (Minutes): 5
A CURT Quick Plug brake controller wiring adapter is one of the fastest and easiest ways to plug your brake controller into your vehicle. It requires no cutting or splicing! Just insert the vehicle-specific plug end into the OEM vehicle?s factory brake controller socket. The other end plugs into your CURT trailer brake controller. Quick Plug harnesses are available for a variety of vehicles and are unique for each vehicle application to provide the easiest possible installation. This particular brake controller harness fits certain years of the Ford F250 Super Duty, F350 Super Duty, F450 Super Duty and F550 Super Duty (see application info to verify fitment). CURT Quick Plug harnesses are compatible with most CURT brake controls and can be used as a replacement or for a new control unit installation. They're also great for towing all types of trailers with electric brakes. For versatile mounting of your trailer brake controller this Quick Plug wire harness measures two feet long. It also features a slit loom sleeve to keep the wires protected against crushing and abrasions. CURT Quick Plug wire plug-in adapters are made with 12-gauge wires for a reliable connection and braking, and come with zip ties to keep the harness contained and out of sight.

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 888-634-94944 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2005 - 2007 | Ford F-250 Super Duty | Installation Location: BH4 Installation Time: 30-60 minutes |
| 2005 - 2007 | Ford F-350 Super Duty | Installation Location: BH4 Installation Time: 30-60 minutes |
| 2005 - 2007 | Ford F-450 Super Duty | Installation Location: BH4 Installation Time: 30-60 minutes |
| 2005 - 2007 | Ford F-550 Super Duty | Installation Location: BH4 Installation Time: 30-60 minutes |
Yes, the CURT 51373 Quick Plug Electric Trailer Brake Controller Wiring Harness, Select Ford F-250, F-350, F-450, F-550 Super Duty (Part #BKDK51373) is designed to fit the 2005-2007 Ford F-250 Super Duty.
The CURT 51373 Quick Plug Electric Trailer Brake Controller Wiring Harness, Select Ford F-250, F-350, F-450, F-550 Super Duty (Part #BKDK51373) fits 2005-2007 Ford F-250 Super Duty models. The 2007 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT 51373 Quick Plug Electric Trailer Brake Controller Wiring Harness, Select Ford F-250, F-350, F-450, F-550 Super Duty (Part #BKDK51373) fits the following vehicles: 2005-2007 Ford F-250 Super Duty; 2005-2007 Ford F-350 Super Duty; 2005-2007 Ford F-450 Super Duty; 2005-2007 Ford F-550 Super Duty. Always verify your specific year, make, and model before ordering.
The CURT 51373 Quick Plug Electric Trailer Brake Controller Wiring Harness, Select Ford F-250, F-350, F-450, F-550 Super Duty (Part #BKDK51373) Typical installation time is 30-60 minutes. Basic hand tools are typically all you need.
Yes, the CURT brake control harness (part numbers 51372 and 51373) is designed for Ford F-250 / F-350 Super Duty and Ford F-450 / F-550 Super Duty vehicles. However, the manual does not specify which part number applies to your specific model year or configuration. Contact CURT Manufacturing at 1.877.287.8634 to confirm the correct part number for your vehicle.
Yes, the CURT brake control harness (51372 or 51373) is compatible with Ford F-350 Super Duty vehicles. Confirm the correct part number for your specific model year by contacting CURT Manufacturing at 1.877.287.8634.
Yes, the CURT brake control harness (51372 or 51373) is designed for Ford F-450 / F-550 Super Duty vehicles.
The kit includes the CURT brake control harness with a grey 4-pin connector and a black connector for the brake control unit, plus cable ties for securing the harness. The manual does not provide a detailed parts list. For a complete inventory, contact CURT Manufacturing at 1.877.287.8634.
Vehicles not equipped with an OEM trailer tow package may require fuses and relays to complete output and battery feed circuits. These are sold separately. Consult your vehicle's owner manual for the locations and specifications of required fuses and relays. If your vehicle has a factory trailer tow package, you may not need additional fuses or relays.
The grey, 4-pin vehicle brake control harness connector is located behind the storage pocket in the center of the dashboard, just above the vehicle ashtray. It will be connected to the back of the storage pocket. The location is marked as BH4 in the manual.
1. Carefully remove the storage pocket from the center of the dashboard, just above the ashtray. 2. Locate the grey, 4-pin vehicle brake control harness connector on the back of the storage pocket. 3. Insert the CURT brake control harness connector into the vehicle connector, ensuring it is fully inserted with locking tabs in place. 4. Insert the black connector of the brake control harness into the brake control unit's quick plug connector. 5. Secure the harness with the provided cable ties, avoiding pinch points.
The grey 4-pin connector on the CURT brake control harness must be pushed completely into the vehicle's connector until the locking tabs on both connectors engage and lock together. This ensures a secure, reliable electrical connection. Do not stop pushing when you feel initial resistance; continue until the tabs are fully seated.
Secure the brake control harness with the provided cable ties. Avoid any pinch points that could damage the wiring or connectors. Route the harness carefully to prevent it from being pinched by the storage pocket, dashboard components, or other vehicle parts.
Yes. After installation, you must test the brake control harness for proper function by following the brake control unit instruction manual. This is essential to ensure the system is working correctly before towing. The manual emphasizes that all steps must be followed to ensure the harness functions properly.
The harness fits Ford F-250 / F-350 Super Duty and Ford F-450 / F-550 Super Duty vehicles. Confirm the correct part number for your model year by contacting CURT at 1.877.287.8634.
Vehicles without an OEM trailer tow package may require fuses and relays (sold separately). Check your vehicle's owner manual for locations and specifications. Vehicles with a factory trailer tow package may not need additional components.
Remove the storage pocket above the ashtray in the center of the dashboard. Connect the grey 4-pin CURT connector to the vehicle's grey 4-pin connector (located on the back of the storage pocket), ensuring locking tabs are fully engaged. Connect the black connector to the brake control unit.
Yes. Test for proper function using the brake control unit instruction manual. All installation steps must be followed to ensure the harness functions properly.





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