The 2026 GMC Sierra 2500 HD is built around serious powertrain options designed to push the boundaries of heavy-duty capability. The standard engine is a 6.6-liter V8 gasoline engine producing 401 horsepower and 464 pound-feet of torque, paired with a six-speed automatic transmission. For those who demand even more pulling power, the available 6.6-liter Duramax turbodiesel V8 delivers an impressive 470 horsepower and 975 pound-feet of torque, mated to an Allison 10-speed automatic transmission. With available four-wheel drive and a robust suspension system, the Sierra HD is equally at home on job sites and open highways. Maximum conventional towing capacity reaches up to 20,000 pounds, and maximum payload tops out at 3,979 pounds, giving drivers the confidence to take on demanding tasks.

Step inside the 2026 GMC Sierra 2500 HD and you'll find a cabin that blends workhorse practicality with genuine premium comfort. Available in Regular Cab, Double Cab, and Crew Cab configurations, there's a layout to suit nearly every need. Higher trim levels such as the Denali and Denali Ultimate elevate the experience with genuine open-pore wood trim, leather-appointed seating, and available heated and ventilated front seats. The front center console is designed with ample storage and functional organization in mind, making long hauls more manageable. Thoughtful details like available rear heated seats and a heated steering wheel ensure passengers stay comfortable regardless of the weather a welcome feature for drivers throughout Black River Falls, WI.

GMC loads the 2026 Sierra 2500 HD with a comprehensive array of driver assistance and safety technologies designed to protect you and your cargo. Standard features include a rearview camera and available front and rear park assist to help navigate tight spaces. Available Forward Collision Alert with Automatic Emergency Braking, Lane Change Alert with Side Blind Zone Alert, and Rear Cross Traffic Alert work together to provide confident awareness on the road. The available HD Surround Vision system offers a bird's-eye view of the truck and its surroundings, a particularly valuable tool when maneuvering in confined areas or backing up with a trailer attached. All of these features combine to give drivers peace of mind whether they're on the job site or the open road.

The 2026 GMC Sierra 2500 HD brings a compelling suite of technology features that keep you connected, informed, and in control. A standard 13.4-inch diagonal color touchscreen anchors the dashboard and runs the latest GMC Infotainment System with wireless Apple CarPlay and Android Auto compatibility. Available wireless device charging keeps your phone powered without the clutter of cables. The available head-up display projects key vehicle information directly onto the windshield, allowing you to keep your eyes on the road. For trailering, GMC's available in-vehicle trailering app and multiple camera views including a transparent trailer view take the guesswork out of hitching and maneuvering. Available Super Cruise hands-free driver assistance technology is also offered on select trims, providing a sophisticated driver assistance experience on compatible roads.

The 2026 GMC Sierra 2500 HD is offered in a well-structured lineup of trims to match a wide range of preferences and budgets. The Pro serves as the entry-level trim, delivering a capable and no-nonsense foundation built for work. The SLE steps things up with added comfort and convenience features. The SLT brings a more premium character with upgraded interior materials and additional technology. The AT4 is engineered for off-road enthusiasts, adding a factory-lifted suspension, skid plates, and an off-road-tuned performance package. The Denali represents the pinnacle of luxury in the lineup, outfitting the Sierra HD with premium materials, advanced technology, and distinctive styling cues that set it apart from the crowd. For the ultimate expression of GMC luxury, the Denali Ultimate adds exclusive features for those who refuse to compromise.

The 2026 GMC Sierra 2500 HD is a standout choice for anyone who needs a heavy-duty truck that doesn't sacrifice refinement for capability. With its powerful engine options, spacious cabin, advanced technology, and comprehensive safety features, it's a truck that's as rewarding to drive every day as it is ready for the hardest jobs on the calendar. Stop by and experience everything the Sierra HD has to offer.