2026 GMC Sierra 3500 HD Pro

Under the hood, the 2026 GMC Sierra 3500HD Pro offers serious muscle designed to match serious work. The available Duramax 6.6-liter turbodiesel V8 engine produces up to 470 horsepower and 975 pound-feet of torque, paired with an Allison 10-speed automatic transmission that keeps power delivery smooth and confident. When properly equipped, the Sierra 3500HD delivers a maximum towing capacity of up to 36,000 pounds, making it one of the most capable heavy-duty trucks in its class. A maximum payload rating of up to 7,442 pounds further underscores just how capable this truck is at tackling demanding workloads.

The Sierra 3500HD Pro keeps things purposeful and practical inside. The cabin is designed with durability in mind, featuring vinyl front and rear seats that can stand up to a hard day's work.

The interior layout is intuitive and functional, with enough space for crew members to ride comfortably on longer hauls. While the Pro trim focuses on utility over luxury, it still provides a well-organized environment that keeps drivers focused and comfortable throughout the workday.

Even at the Pro trim level, the 2026 Sierra 3500HD comes equipped with a capable suite of technology features. A 7-inch diagonal color touchscreen serves as the hub for the infotainment system, offering straightforward access to key controls. Wireless Apple CarPlay and Android Auto compatibility make it easy to stay connected on the go, while an available 4G LTE Wi-Fi hotspot keeps crew members productive even between job sites. Customers throughout Faribault, MN, will appreciate how these features blend practical connectivity with everyday work demands.

GMC equips the Sierra 3500HD Pro with a strong lineup of safety technologies to help drivers stay aware and in control. Standard features include forward collision alert, automatic emergency braking, lane keep assist with lane departure warning, and following distance indicator. The available HD Surround Vision camera system provides a bird's-eye view of your surroundings, which is especially valuable when maneuvering a fully loaded truck or trailer in tight spaces. A rear vision camera is also standard, adding an extra layer of confidence when backing up.

The 2026 GMC Sierra 3500HD is available in a range of trim levels to suit varying needs and budgets. The lineup includes the Pro, SLE, SLT, AT4, Denali, and Denali Ultimate. The Pro serves as the capable, work-ready entry point, while trims like the SLT and Denali add premium comfort, advanced technology, and refined styling for drivers who want both capability and luxury. The AT4 brings off-road-ready features for those who need to perform well beyond the pavement.

The 2026 GMC Sierra 3500HD Pro is a standout choice for drivers who need a hard-working heavy-duty truck without compromise.

From its remarkable towing capacity to its practical interior and advanced safety features, it is built to deliver day in and day out.