The 2025 Sierra 2500 HD is a heavy-duty pickup truck manufactured by GMC. It is part of the Sierra series of pickup trucks and is the successor to the 2024 Sierra 2500 HD. The 2025 Sierra 2500 HD is known for its powerful engine, rugged construction, and advanced technology features.
The 2025 Sierra 2500 HD is powered by a 6.6-liter Duramax turbodiesel V8 engine that produces 470 horsepower and 975 lb-ft of torque. This engine is paired with a 10-speed Allison automatic transmission. The 2025 Sierra 2500 HD has a maximum towing capacity of 20,000 pounds and a maximum payload capacity of 3,979 pounds.