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CURT
Verify Fitment
Select your vehicle to confirm this part fits.
2005 - 2010 Ford F-350 Super Duty
Confirmed to Fit
2005 - 2010 Ford F-350 Super Duty
Confirmed to Fit
2005 - 2010 Ford F-350 Super Duty
Confirmed to Fit
2008 - 2010 Ford F-450 Super Duty
Confirmed to Fit


Always the correct part
We know our products
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Always the correct part
We know our products
Quality Products
Free Shipping!
Includes mounting hardware (base rails sold separately)
Includes mounting hardware (base rails sold separately)
Warranty: Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Color: Black
Finish: A-COAT
Installation Time Exact (Minutes): 0
When you purchase a 5th wheel trailer hitch, you expect it to be capable of towing your RV, flatbed or whatever other 5th wheel trailer you own. While a 5th wheel hitch does offer an impressive amount of towing strength, it cannot get far without the proper installation equipment. Engineered for specific makes and models, CURT custom 5th wheel brackets provide the ideal solution for complementing the power of your 5th wheel trailer hitch. A custom 5th wheel bracket features a shape that contours to the frame of your truck and uses pre-drilled holes in the frame wherever possible to make installation quick and easy. Depending on your model of pickup truck, they also reduce or eliminate the need for drilling. These particular custom 5th wheel brackets offer a custom fit for certain model years of the Ford F-250, F-350 and F-450 Super Duty (see application info to verify fitment). Finished in a durable liquid A-coat, CURT custom 5th wheel brackets are made to last. They include all necessary mounting hardware and are designed to be used in conjunction with CURT industry-standard 5th wheel base rails #16104 or #16204 (base rails sold separately).

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 888-634-94945 compatible vehicles
| Year | Make & Model | Style | Notes |
|---|---|---|---|
| 2005 - 2010 | Ford F-250 Super Duty | — | Drilling Required Installation Time - |
| 2005 - 2010 | Ford F-350 Super Duty | Crew Cab Pickup · 4-Door | Drilling Required Installation Time - |
| 2005 - 2010 | Ford F-350 Super Duty | Extended Cab Pickup · 4-Door | Drilling Required Installation Time - |
| 2005 - 2010 | Ford F-350 Super Duty | Standard Cab Pickup · 2-Door | Drilling Required Installation Time - |
| 2008 - 2010 | Ford F-450 Super Duty | Crew Cab Pickup · 4-Door | Drilling Required Installation Time - |
Yes, the CURT 16448 5th Wheel Installation Brackets, Select Ford F-250, F-350, F-450 Super Duty (Part #BKDK16448) is designed to fit the 2005-2010 Ford F-250 Super Duty.
The CURT 16448 5th Wheel Installation Brackets, Select Ford F-250, F-350, F-450 Super Duty (Part #BKDK16448) fits 2005-2010 Ford F-250 Super Duty models. The 2010 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT 16448 5th Wheel Installation Brackets, Select Ford F-250, F-350, F-450 Super Duty (Part #BKDK16448) fits the following vehicles: 2005-2010 Ford F-250 Super Duty; 2005-2010 Ford F-350 Super Duty; 2008-2010 Ford F-450 Super Duty. Always verify your specific year, make, and model before ordering.
The CURT 16448 5th Wheel Installation Brackets, Select Ford F-250, F-350, F-450 Super Duty (Part #BKDK16448) Drilling is required for installation. Typical installation time is . Basic hand tools are typically all you need.
Yes, Curt 16448 is designed for Ford Super Duty trucks with both 6 1/2' and 8' box lengths. The rail location diagram and mounting specifications apply to both bed lengths.
No. The manual states: 'SYSTEM MAY NOT WORK WITH 2003 AND EARLIER COMPETITOR PRODUCTS.' If you plan to use a competitor's 5th wheel hitch, verify compatibility with Curt before purchasing.
No. Curt 16448 is the mounting rail kit only. The 5th wheel hitch is sold separately. The manual shows an example with Curt 16115 5th wheel but does not include it in the kit.
Yes. Step 1 of the installation instructions requires you to lower and remove the spare tire before beginning installation. You will reinstall it after all mounting work is complete (Step 14).
No. The manual warns: 'Do not install mounting rails over plastic bed liners. Plastic bed liners must be cut out of the way to provide metal to metal contact.' Spray-in bed liners are acceptable and the rails may be installed over them.
If the brake cable interferes with the driver side plate position, it must be relocated onto the driver side plate. Remove the brake cable hanger from the truck frame and keep the hardware for reinstallation after the side plate is mounted.
Yes. Drilling is required on both sides of the frame. You will drill initial 1/8" holes, then enlarge them to 9/16" using a step drill. Additional 9/16" holes may be required for the front mounting fasteners depending on your vehicle model.
During drilling, protect the fuel tank, filler tubes, brake lines, and wire harness by placing a piece of metal between the box floor and these components on the driver side. This prevents drilling into them. Take similar precautions when drilling the front mounting holes into the truck frame.
The kit includes: 10 carriage bolts (1/2-13 x 2"), 2 carriage bolts (1/2-13 x 1 1/4"), 2 hex bolts (5/8-11 x 2"), 12 hex flange nuts (1/2-13), 2 hex flange nuts (5/8-11), 10 square hole spacers (0.250 x 1.50 x 2.00"), 10 U-shaped spacers (0.313" x 1.00 x 2.00"), 2 square hole spacers (0.250 x 1.00 x 2.00"), 2 spacers (0.50 x 2.00"), and 2 fishwires (1/2").
No. The manual states: 'Use only bolts, nuts, and washers supplied to install this kit. All bolts are grade 5 and nuts are grade 5 unless specified otherwise.' Using non-supplied fasteners may compromise safety and voids the warranty.
The manual does not provide a complete tool list. Based on the installation steps, you will need: tape measure, center punch, 1/8" drill bit, 9/16" step drill, torque wrench, and standard wrenches or sockets for 1/2" and 5/8" fasteners. A piece of metal for protection during drilling is also required.
Center each mounting rail between the weld seams on the truck box floor. Position it at the proper distance from the rear edge of the truck box as shown on the Rail Location Diagram. The diagram specifies 2 15/16 inches from the hitch center line and 54 3/16 inches from the axle center line for both short and long boxes.
The U-shaped spacer (CM-SP136) is installed in the corrugation between the truck box and side plates before inserting the 1/2" carriage bolts. It ensures metal-to-metal contact between the mounting rail and the truck bed floor, which is critical for proper load transfer.
For the driver side: slide the spacer over the coiled end of the fishwire, attach it to the 1/2" x 1 1/4" carriage bolt, thread the other end through the back side of the frame and side plate, then gently pull to draw the bolt through and position the plate. For the passenger side: thread the coiled end through the front of the frame and out the gap at the shock tower, slide the spacer over it, attach the bolt, push the hardware into the cavity, thread the other end through the back of the side plate, then pull to draw the bolt through.
First tighten all fasteners snug (not fully) as you install each component to keep parts from moving. After all components are installed, torque the mounting rails to the side plates first, then torque the remaining fasteners. Use 110 lb-ft for all 1/2" fasteners and 210 lb-ft for all 5/8" fasteners.
All 1/2" fasteners must be torqued to 110 lb-ft. This includes the carriage bolts and flange nuts connecting the mounting rails to the side plates and frame.
All 5/8" fasteners must be torqued to 210 lb-ft. These fasteners attach the side plates to the vehicle frame.
Initial holes are drilled at 1/8" diameter, then enlarged to 9/16" diameter using a step drill. Front mounting holes for the side plates are also 9/16" diameter.
According to the Rail Location Diagram, the mounting rails should be positioned 2 15/16 inches from the hitch center line and 54 3/16 inches from the axle center line. These dimensions apply to both 6 1/2' and 8' box lengths.
Do not exceed your vehicle manufacturer's recommended towing capacity. This warning appears at the top of every page of the manual. Exceeding this capacity can cause loss of vehicle control and serious injury or death.
Yes. The manual states: 'Always measure truck and trailer before installing hitch to be sure that there is clearance at the cab and at the bumper to allow for turns.' This ensures the trailer will not strike the truck during turning.
After installation, verify that all fasteners are torqued to specification (110 lb-ft for 1/2" fasteners, 210 lb-ft for 5/8" fasteners), the spare tire is reinstalled, and the mounting rails are centered between the weld seams and positioned at the correct distance from the rear edge of the truck box. Confirm clearance at the cab and bumper for trailer turns.
Yes, Curt 16448 is designed for Ford Super Duty trucks with both 6 1/2' and 8' box lengths.
No. You must use only the supplied bolts, nuts, and washers (all grade 5). Using non-supplied fasteners voids the warranty.
Torque all 1/2" fasteners to 110 lb-ft and all 5/8" fasteners to 210 lb-ft. Torque the mounting rails to the side plates first, then torque remaining fasteners.
Do not exceed your vehicle manufacturer's recommended towing capacity. Always measure truck and trailer for clearance at the cab and bumper before installation.
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