New GMC Sierra 2500HD: Power, Innovation, and Capability Redefined
February 5, 2025
The 2025 GMC Sierra 2500HD exemplifies strength and innovation in the heavy-duty truck segment, offering a blend of robust performance, advanced technology, and refined design.
Performance and Capability
The Sierra 2500HD comes standard with a 6.6-liter V8 gas engine, producing 401 horsepower and 464 lb-ft of torque, paired with a 10-speed automatic transmission. For those seeking enhanced towing capacity, the available 6.6-liter Duramax Turbo-Diesel V8 delivers 470 horsepower and an impressive 975 lb-ft of torque.