Command the road with the 2026 GMC Sierra 3500HD AT4: A powerhouse of performance and luxury, designed for those who demand the extraordinary in every drive.

The 2026 GMC Sierra 3500HD AT4 is not just a truck; it's a statement of strength and capability. With its robust 6.6L V8 engine delivering 401 horsepower and 464 lb-ft of torque, this truck is built to handle the toughest challenges. The 10-speed automatic transmission ensures smooth power delivery, while the 4x4 drivetrain provides unparalleled traction on any terrain. For those who tow, the Gooseneck/5th Wheel Prep Package offers seamless integration, making heavy-duty hauling a breeze.

Inside, luxury meets functionality with leather bucket seats that are both heated and cooled, ensuring comfort in any climate. The state-of-the-art 13.4" diagonal premium GMC infotainment system, complete with Google built-in apps, keeps you connected and entertained on the go. Safety is paramount, with features like Blind Spot Monitor, Lane Departure Warning, and Front Collision Mitigation providing peace of mind.

The exterior is as rugged as it is refined, featuring an integrated tailgate step and running boards for easy access. The AT4 Preferred Package adds practical touches like roof marker lamps and a power rear sliding window, enhancing both style and convenience.