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2020 - 2026 Chevrolet Silverado 3500 HD
Confirmed to Fit
2020 - 2026 Chevrolet Silverado 3500 HD
Confirmed to Fit
2020 - 2026 Chevrolet Silverado 3500 HD
Confirmed to Fit
2020 - 2026 GMC Sierra 3500 HD
Confirmed to Fit
2020 - 2026 GMC Sierra 3500 HD
Confirmed to Fit
2020 - 2026 GMC Sierra 3500 HD
Confirmed to Fit
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Not compatible with X5 adapter or factory 5th wheel prep package
Warranty: Limited Lifetime Warranty (One-Year Finish, One-Year Parts)
Finish: A-COAT
Gross Trailer Weight (Pounds): 38,000 LB
Vertical Load (Pounds): 9,500 LB
Ball Diameter (Inches): 2-5/16 IN
Installation Time Exact (Minutes): 0
Ingenious design and reliability -- these words don't just describe the Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD; they were the inspiration for the CURT OEM-style gooseneck hitch for GM. This hitch is built to excel in two key things: ease of installation that comes from an ingenious design and safe, reliable towing even with heavy-duty gooseneck trailers. The Chevy / GMC-compatible gooseneck hitch boasts a one-person installation. It is built with fewer pieces than competitor hitches to keep installation simple, and the pieces are designed to be compact so they can be lifted and bolted into place without the help of a second person. We've also eliminated a number of steps from the process to speed up installation time and reduce the number of modifications needed on the vehicle. The hitch does not require the exhaust or spare tire to be lowered. It requires no welding, temporary truck bed removal or even bed flange trimming. Best of all, pre-existing factory holes are used to mount the hitch to the truck's frame, meaning the only drilling necessary is for the gooseneck ball hole and safety chains in the truck bed. Once installed, the OEM-style gooseneck hitch for Chevrolet / GMC offers simple operation and highly secure towing. It is tested in accordance with SAE J2638 to safely tow up to 38,000 lbs. GTW. Instead of a side handle mounted under the wheel well, it uses a latch-locking trailer ball. This patented 2-5/16" ball easily drops into the gooseneck head from above the truck bed and is secured in place with a simple quarter-turn of the latch. This Chevrolet Silverado / GMC Sierra 2500 HD and 3500 HD gooseneck hitch also features heavy-duty 5/8" safety chain anchors for dependable security for your trailer, whether you're towing livestock, machinery or construction materials. To ensure maximum quality, the CURT OEM-style gooseneck hitch for GMC and Chevrolet comes with a tough A-coat finish to easily resist rust and scratches.
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®.'
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Call 888-634-9494Rediscover "Us" Time | Tested. Proven. Safe. Towing Products
8 compatible vehicles
| Year | Make & Model | Style | Notes |
|---|---|---|---|
| 2020 - 2026 | Chevrolet Silverado 2500 HD | — | Drilling Required - Installation Time - |
| 2020 - 2026 | Chevrolet Silverado 3500 HD | Crew Cab Pickup · 4-Door | Drilling Required - Installation Time - |
| 2020 - 2026 | Chevrolet Silverado 3500 HD | Extended Cab Pickup · 4-Door | Drilling Required - Installation Time - |
| 2020 - 2026 | Chevrolet Silverado 3500 HD | Standard Cab Pickup · 2-Door | Drilling Required - Installation Time - |
| 2020 - 2026 | GMC Sierra 2500 HD | — | Drilling Required - Installation Time - |
| 2020 - 2026 | GMC Sierra 3500 HD | Crew Cab Pickup · 4-Door | Drilling Required - Installation Time - |
| 2020 - 2026 | GMC Sierra 3500 HD | Extended Cab Pickup · 4-Door | Drilling Required - Installation Time - |
| 2020 - 2026 | GMC Sierra 3500 HD | Standard Cab Pickup · 2-Door | Drilling Required - Installation Time - |
Yes, the CURT OEM-Style Gooseneck Hitch, Select Chevrolet Silverado, GMC Sierra 2500, 3500 HD Gooseneck Trailer Hitch (Part #BKDK60642) is designed to fit the 2020-2026 Chevrolet Silverado 2500 HD.
The CURT OEM-Style Gooseneck Hitch, Select Chevrolet Silverado, GMC Sierra 2500, 3500 HD Gooseneck Trailer Hitch (Part #BKDK60642) fits 2020-2026 Chevrolet Silverado 2500 HD models. The 2026 model year is the last year covered by this part number. For newer models, check for an updated version.
The CURT OEM-Style Gooseneck Hitch, Select Chevrolet Silverado, GMC Sierra 2500, 3500 HD Gooseneck Trailer Hitch (Part #BKDK60642) fits the following vehicles: 2020-2026 Chevrolet Silverado 2500 HD; 2020-2026 Chevrolet Silverado 3500 HD; 2020-2026 GMC Sierra 2500 HD; 2020-2026 GMC Sierra 3500 HD. Always verify your specific year, make, and model before ordering.
The CURT OEM-Style Gooseneck Hitch, Select Chevrolet Silverado, GMC Sierra 2500, 3500 HD Gooseneck Trailer Hitch (Part #BKDK60642) Drilling is required for installation. Typical installation time is . Basic hand tools are typically all you need.
The CURT 60642 is a gooseneck hitch kit designed for GM HD (General Motors Heavy Duty) trucks. It includes a 2-5/16" OE gooseneck ball, center section weldment, frame attachment plates, safety chain U-bolt assemblies, and all required fasteners. The kit weighs 150 lbs. and is designed to mount to the truck bed and frame.
The kit is designed for GM HD trucks in both short bed and standard bed configurations. However, on short bed models, you must check for adequate turning clearance between the front of all trailers and the truck cab before towing. The manual specifically warns that short bed models require this clearance verification.
Required tools are: ratchet; torque wrench; 10mm and 13mm sockets; 3/4" and 15/16" sockets; drill; 11/16" drill bit; 3/16" drill bit; 3 1/4" hole saw; cutting fluid; rust inhibitor; and eye and ear protection. A 7/8" torque adapter (included) is needed for hard-to-reach 5/8" fasteners.
The kit includes: 2 square hole spacers (CM-SP9); 6 carriage bolts 5/8-11 UNC 1-3/4" (10-10292); 7 carriage bolts 5/8-11 UNC 1-1/2" (10-10330); 13 serrated flange nuts 5/8-11 UNC (20-00105); 6 lock washers 5/8" (30-00132); 6 hex cap screws 5/8-11 UNC 1-3/4" (10-10296); 14 flat washers 5/8" (30-00131); 5 serrated flange nuts 1/2-13 UNC (20-00062); 4 carriage bolts 1/2-13 UNC 4-1/2" (10-10297); 2 square U-bolts 5/8" (60686-UB); 4 U-bolt springs (CM-C113-UBS); 4 center lock nuts 5/8-18 UNF (20-00135); 1 carriage bolt 1/2-13 UNC 5" (10-10332); 1 U-shaped edging (CM-UE1); 2 fishwires 5/8" (5_8 FISHWIRE); 2 spacers (60686-SP); 4 tube spacers 1 (60686-TS1); and 1 tube spacer 2 (60686-TS2).
Removing the spare tire may aid in installation but is not required. The manual states it is optional. If you do remove it, you must reinstall it after installation is complete.
Lowering the exhaust on some models may be required to allow room for the center section and attachment plates. The manual does not specify which models require this, so you should check clearance during installation. If lowering is needed, you must raise it back to its original position after installation.
All models require modification or removal of heat shields. During installation, you will remove 4 screws attaching the heat shield above the rear axle using a 13mm socket and return the heat shield to the vehicle owner. The manual does not specify whether this removal is permanent or if the heat shield can be reinstalled after the kit is mounted.
Yes. The manual warns that brake, fuel, and electrical lines may need to be loosened or repositioned to provide clearance for new hardware. You should inspect these lines before and during installation to ensure they do not interfere with the mounting plates or fasteners.
Tighten fasteners in this order: (1) 4 vertical 5/8" center section fasteners; (2) 7 horizontal 5/8" center section fasteners; (3) 6 hex bolts connecting frame and center attachment plates; (4) 2 frame attachment plate fasteners; (5) remaining 1/2" fasteners. After tightening in sequence, torque all 1/2" fasteners to 110 lbs.-ft. and all 5/8" fasteners to 150 lbs.-ft.
All 1/2" fasteners must be torqued to 110 lbs.-ft. All 5/8" fasteners must be torqued to 150 lbs.-ft. For hard-to-reach 5/8" fasteners, use the supplied 7/8" torque adapter (part 60686-DB) attached to your torque wrench. The nuts on the safety chain U-bolts should be tightened until flush with the bottom of the U-bolt.
No. The manual explicitly states "NO FRAME DRILLING REQUIRED." However, you will need to drill the truck bed for the gooseneck ball and safety chain U-bolts.
Two types of drilling are required in the truck bed: (1) A 3/16" pilot hole drilled from underneath using the center locator/trim shield as a guide, then a 3 1/4" hole drilled from above using a hole saw with the pilot hole as a guide. This hole is for the gooseneck ball. (2) Four 11/16" holes drilled through the truck bed for the safety chain U-bolts. Drilling a small 3/16" pilot hole first will ease this process. Center punching the bed from below and drilling from above may be preferred. Deburr all holes and spray exposed metal with rust inhibitor.
The center locator/trim shield (part 60614-CL, item J) is a component that must be installed in the top of the center section cylinder before the center section is raised into position. It serves as a guide for drilling the 3/16" pilot hole for the gooseneck ball. The manual emphasizes that this part MUST be present prior to center section installation.
The CM-UE1 rubber edge trim (item 14) is installed around the edge of the 3 1/4" hole drilled in the truck bed for the gooseneck ball. It should be trimmed to length to fit the hole. This protects the cut edge and prevents rust.
Place the driver side weldment (part 60697-DSWA, item C) into position first. Then raise the passenger side weldment (part 60697-PSWA, item D) into position adjacent to the driver side weldment. Both should have 5/8" carriage bolts placed in their top mounting holes before positioning. The center locator/trim shield (item J) must be in the top of the center section cylinder before the center section is raised into position.
The center section (part 60686-CWA, item G) is raised into position over the rear differential and slid into the center attachment plates. Once aligned, loosely install 4 vertical 5/8" hex flange nuts. The latch plate (part 60686-L, item K) is placed against the rear of the center attachment plates and fastened with 4 rearward 5/8" carriage bolts (1-3/4" length) and 3 forward 1-1/2" bolts. Loosely install 7 hex flange nuts on these bolts. All fasteners are tightened in sequence after frame attachment plates are installed.
The frame attachment plates (parts 60697-PS, 60697-DS, 60686-PS2, and 60686-MS—items A, B, E, and F) are installed from under the truck to the frame as shown in Figures 3 and 4. They are loosely installed first. Then 6 hex bolts with lock washers and flat washers are loosely installed to attach the frame attachment plates to the center attachment plates. All fasteners are tightened in the specified sequence after all plates are positioned.
After drilling 4 holes through the truck bed using an 11/16" drill bit, install the safety chain U-bolt assemblies (parts 60686-UB and CM-C113-UBS) as shown in Figure 5. Ensure they sit flat when in the lower position and slide easily without binding. Enlarge holes as needed for proper operation. Deburr holes and spray exposed metal with rust inhibitor. Tighten the nuts until flush with the bottom of the U-bolt.
Using a 10mm socket, remove the 2 screws that attach the wire harness bracket to the steel cross member before raising the center section into position. This prevents damage to the bracket. Save the screws and reinstall the bracket after installation is complete.
The manual does not specify a maximum towing weight for the kit itself. Instead, it repeatedly warns: "Do not exceed the vehicle manufacturer's recommended towing capacity." You must verify your specific truck's towing capacity with the vehicle manufacturer or owner's manual and ensure the trailer weight does not exceed that capacity.
Before towing the first time, verify: (1) Adequate turning clearance between the truck cab/box corners and trailer(s); (2) Minimum 6" clearance between the bottom of the trailer overhang and the top of the box sides; (3) All hardware is torqued to proper specification; (4) Trailer safety chain length—leave only enough slack to allow full turning without interference; (5) Trailer attachments to safety chain loops are secure. On short bed models, check turning clearance between the front of all trailers and the truck cab.
Measure the distance from the cab to the ball center (X) and half the trailer width (Y). For a standard trailer, use the equation: X - Y = Z. If Z is positive, the trailer will not interfere with the cab. If Z is negative, the trailer will interfere. For trailers with coupler overhang (W), use: [X - W] - Y = Z. The manual provides an example: a truck with 35" cab-to-ball distance and 36" half-trailer width results in -1" clearance (interference). Measure your specific dimensions and calculate before towing.
Before every towing trip: (1) Ensure all fasteners are tight and all structural components are sound; (2) Attach trailer securely to safety chain loops; (3) Ensure trailer weight does not exceed any part of the towing system; (4) Load the trailer heavier towards the front while not exceeding hitch tongue weight; (5) Keep the load centered left to right and secured to prevent shifting; (6) Never load the trailer heavier behind the trailer axle(s); (7) Check tire inflation on both truck and trailer; (8) Verify trailer lights, electric brakes, and breakaway switches are working properly.
Keep the gooseneck ball, receiver, and trailer coupler lubricated regularly using silicone spray or equivalent to prevent wear and rust. Keep all components free of dirt and other foreign debris. Periodically check that all fasteners are tight and all structural components are sound. Do not tow a trailer with worn or damaged parts. Failure to maintain the towing system could result in poor performance or catastrophic failure.
Do not tow more than one trailer at a time, as this may cause loss of control. Vehicle performance (braking, handling, acceleration, turning radius) can be drastically affected by the trailer—allow additional time and space for stopping, changing lanes, passing, and turning. Severe bumps can damage the towing system; avoid or drive slowly over rough terrain.
After installation, verify: (1) All hardware is torqued to the proper specification (1/2" fasteners to 110 lbs.-ft., 5/8" fasteners to 150 lbs.-ft.); (2) All structural components are sound; (3) Safety chain U-bolts sit flat and slide easily without binding; (4) The rubber edge trim (CM-UE1) is properly installed around the gooseneck ball hole; (5) All holes are deburred and exposed metal is sprayed with rust inhibitor; (6) The spare tire and wire harness bracket are reinstalled if they were removed.
The kit includes a 2-5/16" OE gooseneck ball (part 60627, item H) and a rubber cover (part 66155, item I). The rubber cover should be inserted into the gooseneck when the ball is not in use. The manual refers to part 60627 for installation and operation instructions of the gooseneck ball.
The CURT 60642 is designed for GM HD (General Motors Heavy Duty) trucks in both short bed and standard bed configurations. On short bed models, you must verify adequate turning clearance between the trailer and truck cab before towing.
You need: ratchet; torque wrench; 10mm, 13mm, 3/4", and 15/16" sockets; drill with 11/16", 3/16" bits and 3 1/4" hole saw; cutting fluid; rust inhibitor; and eye/ear protection. An included 7/8" torque adapter helps reach difficult fasteners.
No frame drilling is required. You will drill the truck bed for the gooseneck ball (3 1/4" hole) and safety chains (four 11/16" holes), but the frame attachment uses existing holes.
Removing the spare tire may aid installation but is not required. Lowering the exhaust on some models may be required for clearance. Both are optional and should be reinstalled after installation.
Verify: (1) All fasteners are torqued correctly; (2) Turning clearance between cab and trailer; (3) Minimum 6" clearance between trailer overhang and box top; (4) Safety chain length and attachment security; (5) Trailer weight does not exceed vehicle capacity.
Lubricate the gooseneck ball, receiver, and coupler regularly with silicone spray. Keep all components clean and free of debris. Before every tow, check that all fasteners are tight and structural components are sound. Do not tow with worn or damaged parts.
Enlarge the holes as needed for proper operation. The manual states: "Enlarge holes as needed for proper operation." If the 11/16" holes are too small, carefully enlarge them using the drill or a file until the U-bolts sit flat in the lower position and slide freely without binding.
Use the supplied 7/8" torque adapter (part 60686-DB). Attach it to your torque wrench to reach hard-to-access 5/8" fasteners. The manual specifically provides this adapter for this purpose.
If your clearance calculation (Z) is negative, the trailer will interfere with the cab. This means the trailer is too wide or the coupler overhang is too long for your truck's turning radius. Do not tow this trailer with this hitch. You must use a different trailer with a narrower profile or shorter overhang, or verify that the calculation was performed correctly using the measurements from your specific truck and trailer.
Periodically check that all fasteners are tight and all structural components are sound. Re-torque any loose fasteners to the proper specification: 1/2" fasteners to 110 lbs.-ft. and 5/8" fasteners to 150 lbs.-ft. The manual emphasizes periodic checking to ensure the hitch remains safe for towing.
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