2023 GMC Sierra 3500 HD Crew CAB towing capacity
The 2023 GMC Sierra 3500 HD Crew CAB is published in 10 configurations with a tow rating of 20,000 lb (serious heavy-duty pickup territory).
The table below lists every trim of the 2023 GMC Sierra 3500 HD Crew CAB with the engine, drivetrain, axle ratio, horsepower, torque, GVWR, curb weight, and payload that go with that trim's headline tow rating. Manufacturers often publish more than one tow figure per truck — a conventional bumper-hitch rating, a weight-distributing rating, and a gooseneck or fifth-wheel rating — so the highest number here is the maximum across all hitch classes the source carries for the trim.
Per-trim breakdown
| Configuration | Engine | HP | Torque | Axle | Tow (lb) | GVWR | Curb | Payload |
|---|---|---|---|---|---|---|---|---|
| Pro Pickup 4D 8 ft | V8, 6.6 Liter | 401 | 464 | — | 20,000 | — | 7,352 | — |
| Pro Pickup 4D 6 1/2 ft | V8, 6.6 Liter | 401 | 464 | — | 20,000 | — | 6,947 | — |
| SLE Pickup 4D 8 ft | V8, Turbo Diesel, 6.6 Liter | 445 | 910 | — | 20,000 | — | 7,352 | — |
| SLE Pickup 4D 6 1/2 ft | V8, Turbo Diesel, 6.6 Liter | 445 | 910 | — | 20,000 | — | 6,947 | — |
| AT4 Pickup 4D 8 ft | V8, 6.6 Liter | 401 | 464 | — | 20,000 | — | 7,064 | — |
| Denali Pickup 4D 6 1/2 ft | V8, 6.6 Liter | 401 | 464 | — | 20,000 | — | 6,947 | — |
| SLT Pickup 4D 6 1/2 ft | V8, Turbo Diesel, 6.6 Liter | 445 | 910 | — | 20,000 | — | 6,947 | — |
| SLT Pickup 4D 8 ft | V8, Turbo Diesel, 6.6 Liter | 445 | 910 | — | 20,000 | — | 7,352 | — |
| Denali Pickup 4D 8 ft | V8, 6.6 Liter | 401 | 464 | — | 20,000 | — | 7,064 | — |
| AT4 Pickup 4D 6 1/2 ft | V8, 6.6 Liter | 401 | 464 | — | 20,000 | — | 6,947 | — |
How to interpret the headline tow figure
Tow figures this high require a gooseneck or fifth-wheel hitch installed in the bed of the truck, and a corresponding trailer setup. Conventional bumper-pull towing on the same vehicle is typically capped well below this number — usually under 15,000 lb. Always check the door-jamb sticker and owner's manual for the maximum permitted on each hitch class before hooking up.
How this year compares to 2022
The 2022 GMC Sierra 3500 HD Crew CAB carried a maximum tow rating of 16,300 lb. The 2023 model adds 3,700 lb on top of that — usually a sign the manufacturer added a tow package option, refreshed the powertrain, or revised hitch class certification. See the 2022 GMC Sierra 3500 HD Crew CAB page for the full per-trim breakdown of the prior year.
Other 2023 GMC models
The rest of GMC's 2023 lineup, ranked by maximum tow rating. Click through for the per-trim breakdown of any of these.
| Model | Max tow (lb) |
|---|---|
| 2023 GMC Sierra 3500 | 20,000 |
| 2023 GMC Sierra 2500 HD Crew CAB | 18,500 |
| 2023 GMC Sierra 2500 | 18,500 |
| 2023 GMC Sierra 3500hd | 16,000 |
| 2023 GMC Sierra 2500 HD Double CAB | 14,500 |
| 2023 GMC Sierra 2500 HD Regular CAB | 14,500 |
All figures sourced from manufacturer documentation. See our methodology for how the dataset is compiled. Always confirm against your vehicle's door-jamb sticker before towing.