The 2025 GMC Sierra 2500HD Crew Cab is a full-size, heavy-duty pickup truck manufactured by General Motors. It is the fourth generation of the Sierra 2500HD, and it is available in a variety of configurations, including regular cab, double cab, and crew cab. The crew cab model features four full-size doors and seating for up to six passengers.
The 2025 GMC Sierra 2500HD Crew Cab is powered by a 6.6-liter Duramax turbo-diesel V8 engine that produces 445 horsepower and 910 lb-ft of torque. It is paired with a 10-speed Allison automatic transmission. The truck has a maximum towing capacity of 20,000 pounds and a maximum payload capacity of 3,979 pounds.
