Performance and capabilities
The 2023 Sierra HD lineup offers a pair of outstanding powertrains for all your work needs. The standard 6.6-liter V8 kicks out 401 horsepower and 464 lb-ft of torque, while the available 6.6-liter Duramax® V8 turbo-diesel with Dual Path Air Induction delivers 445 horsepower and 910 lb-ft of torque.
With either engine, you’ll be well-equipped for huge towing and hauling tasks:
• Sierra 2500HD models can pull up to 17,370 pounds (gas with fifth wheel/gooseneck setup) or 18,510 pounds (diesel). The top 2500HD payload rating is 3,979 pounds (gas) or 3,715 pounds (diesel).
• Sierra 3500HD models can tow up to 17,200 pounds (gas with fifth wheel) or 36,000 pounds (diesel with dual rear wheel configuration and fifth wheel). They can also haul up to 7,442 pounds (gas and DRW) or 6,523 pounds (diesel and DRW).
The Sierra HD also promises capable off-road performance with a standard automatic locking rear differential, available or standard 4WD, and an AT4 trim option packed with features for rugged all-terrain driving.