The 2025 GMC Sierra 2500 HD Denali is a heavy-duty pickup truck that provides spectacular efficiency, functionality, and luxurious. It’s the top-of-the-line mannequin within the Sierra HD lineup and is designed to satisfy the wants of demanding drivers who require a strong and versatile truck.
The 2025 Sierra 2500 HD Denali is powered by a typical 6.6-liter Duramax turbodiesel V8 engine that produces 445 horsepower and 910 lb-ft of torque. This engine is paired with a 10-speed Allison automated transmission that gives clean and environment friendly shifting. The truck additionally contains a four-wheel drive system with a two-speed switch case for enhanced traction and off-road functionality.