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Replaces CURT #16414
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 Chevrolet Silverado 1500 and 1500 LD and GMC Sierra 1500 and 1500 Limited (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 888-634-9494Rediscover "Us" Time | Tested. Proven. Safe. Towing Products
4 compatible vehicles
| Year | Make & Model | Notes |
|---|---|---|
| 2007 - 2018 | Chevrolet Silverado 1500 | No Drilling Required Installation Time - |
| 2019 | Chevrolet Silverado 1500 LD | No Drilling Required Installation Time - |
| 2007 - 2018 | GMC Sierra 1500 | No Drilling Required Installation Time - |
| 2019 | GMC Sierra 1500 Limited | No Drilling Required Installation Time - |
The CURT Custom 5th Wheel Brackets, Select Chevrolet Silverado, GMC Sierra 1500 Fifth Wheel Trailer Hitch Bracket (Part #BKDK16400) fits the following vehicles: 2007-2018 Chevrolet Silverado 1500; 2019 Chevrolet Silverado 1500 LD; 2007-2018 GMC Sierra 1500; 2019 GMC Sierra 1500 Limited. Always verify your specific year, make, and model before ordering.
The CURT Custom 5th Wheel Brackets, Select Chevrolet Silverado, GMC Sierra 1500 Fifth Wheel Trailer Hitch Bracket (Part #BKDK16400) fits 2007-2018 Chevrolet Silverado 1500 models. The 2019 model year is the last year covered by this part number. For newer models, check for an updated version.
Yes, the CURT Custom 5th Wheel Brackets, Select Chevrolet Silverado, GMC Sierra 1500 Fifth Wheel Trailer Hitch Bracket (Part #BKDK16400) is designed to fit the 2007-2018 Chevrolet Silverado 1500.
The CURT Custom 5th Wheel Brackets, Select Chevrolet Silverado, GMC Sierra 1500 Fifth Wheel Trailer Hitch Bracket (Part #BKDK16400) Drilling is not required for installation. Typical installation time is . Basic hand tools are typically all you need.
The Curt 16400 is a mounting rail system designed to support fifth wheel hitches, roller hitches, or gooseneck hitches on Chevrolet and GMC short box and long box trucks. The mounting rails are sold separately from the hitch itself and bolt to the truck frame and bed. Installation takes approximately 60 minutes.
No. The Curt 16400 explicitly excludes vehicles equipped with Magnetic Ride Leveling. Do not install this product on trucks with this suspension system.
The system may not work with 2003 and earlier competitor products. For compatibility with specific non-Curt hitch models, contact the hitch manufacturer or Curt Manufacturing to confirm fitment before purchasing.
Plastic bed liners must be trimmed to allow metal-to-metal contact between the mounting rails and the truck bed. The system may be installed on spray-in bed liners, but you must compensate for the thickness of the spray-in liner when measuring and positioning the mounting rails.
The kit includes 16 serrated flange nuts (1/2-13 UNC, Grade 8), 10 carriage bolts (1/2-13 UNC, 2 inch, Grade 8), 10 U-shaped spacers (.313" x 1.00 x 2.00"), 10 square hole spacers (.250 x 1.50 x 2.00"), 2 U-bolts (1/2-13 x 4 1/8 x 4 3/4 x 1 1/2 SQ), 2 U-bolts (1/2-13 x 4 1/8 x 6 x 1 1/2 SQ), 2 BHCS bolts (5/8-11 UNC, 2 inch, Grade 8), 2 serrated flange nuts (5/8-11 UNC, Grade 8), 2 square hole spacers (.375 x 1.25 x 2.50"), 2 HHCS bolts (M8x1.25, 20mm, Class 10.9), 2 flange nuts (M8x1.25, Class 10), 1 HHCS bolt (5/16-18 UNC, 1-1/4 inch, Grade 8), 1 serrated flange nut (5/16-18 UNC, Grade 8), 2 pieces of 5/8" fishwire, and 1 brake line bracket.
No. The fifth wheel hitch mounting rails are sold separately. You must purchase the mounting rails in addition to this kit.
The manual specifies the use of a tape measure, center punch, 1/8" drill bit, and step drill (to enlarge holes to 9/16"). A wrench or socket set will be needed to tighten fasteners. The manual does not specify additional tools required.
Yes. The factory brake line bracket must be unbolted and replaced with the supplied bracket (CM-BLB) using the factory bolts. The factory bracket is then re-attached to the supplied bracket. This prevents rubbing of brake lines on the U-bolt. The supplied bracket is included in the kit.
The frame rail must be clear of any electrical or brake components where the side plates attach. Before installation, check that no electrical or braking components are trapped between the frame and side plates. If components are in the way, they must be moved. In some cases, depending on the year and box size, the brake cable hanger may need to be attached through the side plate on the driver side.
Use a tape measure to center each mounting rail on the truck box floor and position it at the proper distance from the rear edge of the truck box as shown on the rail location diagram. For short box models, the hitch center line is 47.500 inches from the axle center line. For long box models, it is 52.375 inches. The distance from the cab to the hitch center line is 1.500 inches for both. If your truck has a spray-in bed liner, compensate for its thickness when measuring.
Yes. Before installing the hitch, measure to ensure there will be enough clearance between the truck and trailer to allow for turns. This is important for safe operation and to prevent collision damage during towing.
Yes. Drilling is required. You must drill 1/8" pilot holes through the truck frame at marked positions, then enlarge them to 9/16" using a step drill. The manual indicates "NO" for drill application, meaning no special drilling application is needed beyond standard drilling.
First, drill 1/8" pilot holes at the marked positions using a center punch to mark the locations. Then enlarge these holes to 9/16" using a step drill.
Yes, if your truck has a plastic bed liner. Plastic liners must be trimmed to allow metal-to-metal contact between the mounting rails and the truck bed. Spray-in bed liners do not require trimming, but you must account for their thickness when measuring rail position.
All 1/2" fasteners must be torqued to 110 lb-ft, except for U-bolts which must be torqued to 75 lb-ft. This includes the carriage bolts that fasten the rails to the frame bracket and the nuts on the side plate fasteners.
All 5/8" fasteners must be torqued to 180 lb-ft.
U-bolts must be torqued to 75 lb-ft. This applies to both the 1/2-13 x 4 1/8 x 4 3/4 x 1 1/2 SQ U-bolts and the 1/2-13 x 4 1/8 x 6 x 1 1/2 SQ U-bolts.
1. Place one mounting rail in the truck bed, centered and at the correct distance from the rear edge per the rail location diagram. 2. Mark hole positions with a center punch and drill 1/8" pilot holes. 3. Temporarily position the side plate to verify alignment with the drilled holes. 4. Enlarge holes to 9/16" with a step drill. 5. Place U-bolts on the frame and fasten the side plate hand-tight. 6. Reposition the mounting rail and fasten it to the side plates using carriage bolts and spacers. 7. Position the second mounting rail using the hitch tabs and push it tight toward the first rail, ensuring it is centered. 8. Repeat steps 2, 4, 6, and 7 for the second rail. 9. Torque all fasteners to specification.
Fasten the side plate to the frame hand-tight in step 5. Do not fully tighten fasteners until step 9, after both mounting rails are positioned and the second rail is aligned using the hitch. This allows for proper alignment before final torquing.
Place the unassembled fifth wheel, roller, or gooseneck hitch into the first installed mounting rail. Position the second mounting rail by inserting the hitch tabs into the mounting rail and pushing the rail tight toward the first rail. Ensure the second rail is centered on the truck box floor. If multiple hitch products will be used with the rails, use both at the same time to align the second rail and ensure proper fit of each product.
Spacers are placed between the frame bracket or mounting rails and the truck box to ensure metal-to-metal contact and to eliminate "rib crush" of the bed. The kit includes U-shaped spacers (.313" x 1.00 x 2.00"), square hole spacers (.250 x 1.50 x 2.00"), and larger square hole spacers (.375 x 1.25 x 2.50").
Depending on the year and box size, the brake cable hanger may need to be attached through the side plate on the driver side. To do this, remove the bracket from the truck, tip the bracket, thread it through the long slot, and rotate it into position. You may need to remove the brake lines from the bracket temporarily. When reinstalling the brake lines, push the bracket further through the plate and collect the lines with the bracket, ensuring they are in their original position.
Do not exceed your vehicle manufacturer's recommended towing capacity. This is the primary safety requirement for safe operation of the hitch system.
The manual specifies that only supplied fasteners must be used for installation. Substituting fasteners of different grades, sizes, or materials could compromise the structural integrity and safety of the installation.
The Curt 16400 fits Chevrolet and GMC short box and long box trucks, but excludes vehicles equipped with Magnetic Ride Leveling. Confirm your truck does not have this suspension system before purchasing.
The mounting rails are sold separately. You must purchase them in addition to the Curt 16400 kit.
Torque all 1/2" fasteners to 110 lb-ft (except U-bolts at 75 lb-ft) and all 5/8" fasteners to 180 lb-ft. Do not torque M8 or 5/16-18 fasteners; the manual does not provide specifications for these.
Yes. Unbolt the factory brake line bracket and replace it with the supplied bracket (CM-BLB) using the factory bolts, then re-attach the factory bracket to the supplied bracket to prevent brake line rubbing.
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