2026 GMC Sierra 2500 HD

The 2026 GMC Sierra 2500 HD is built around brute strength and dependable output. It offers multiple powertrain options, including a powerful 6.6-liter V8 gas engine and an available 6.6-liter Duramax turbo-diesel V8, giving drivers the flexibility to match their work demands.

The Duramax diesel produces an impressive 470 horsepower and 975 pound-feet of torque, making it one of the most capable engines in the heavy-duty segment. Whether you're hauling materials or towing a fifth-wheel trailer, the Sierra HD's powertrain is ready for the challenge.

Step inside the 2026 Sierra 2500 HD and you'll find a cabin designed to balance utility with genuine comfort. Higher trim levels feature premium leather-appointed seating, open-pore wood accents, and thoughtful storage throughout the cabin.

The MultiPro tailgate - a signature GMC innovation - adds versatility and functionality that goes well beyond a standard tailgate. Whether you're using the truck for work or weekend adventures, the spacious interior keeps passengers comfortable and gear organized mile after mile.

GMC loads the 2026 Sierra 2500 HD with technology that makes every drive smarter and more connected. A large available 13.4-inch diagonal touchscreen powers the GMC's infotainment system, with wireless Apple CarPlay and Android Auto compatibility built in.

Available Super Cruise - GMC's hands-free driver assistance technology - lets drivers relax on compatible divided highways. A built-in Wi-Fi hotspot keeps the whole crew connected on the road, and available Transparent Trailer View brings a live camera feed to the infotainment display to simplify hitching and towing.

The 2026 GMC Sierra 2500 HD comes equipped with a strong suite of driver assistance and safety technologies. Standard and available features include Forward Collision Alert, Automatic Emergency Braking, Lane Keep Assist with Lane Departure Warning, and a rear vision camera.

For those doing serious towing work, available Trailer Sway Control and Integrated Trailer Brake Controller add an extra layer of confidence and control. The Sierra HD's robust frame and advanced safety features work together to give drivers and passengers peace of mind on every trip.

The 2026 GMC Sierra 2500 HD is offered in a range of trim levels to suit a wide variety of needs and preferences. The lineup begins with the work-focused Pro, followed by the SLE, which adds enhanced convenience features. The SLT brings upgraded interior finishes and additional technology.

The AT4 steps in with off-road-ready hardware, skid plates, and rugged styling for drivers who venture beyond the pavement. Topping the lineup is the Denali, GMC's pinnacle of luxury and refinement, featuring premium materials, exclusive styling details, and the most complete list of available technology features.

The 2026 GMC Sierra 2500 HD is a heavy-duty truck that brings together raw capability, smart technology, and refined comfort in a package that's hard to beat. From the capable Pro trim to the premium Denali, there's a Sierra HD configured for every driver's needs. Stop by to explore the full lineup and experience what Professional Grade truly means.