New 2026 GMC Sierra 2500HD

Experience the power and capability of the 2026 GMC Sierra 2500HD AT4X Crew Cab, designed for demanding work and rugged adventures with advanced diesel performance.

Built to handle the toughest jobs, this Sierra 2500HD features a Duramax 6.6L Turbo-Diesel V8 engine delivering an impressive 470 horsepower and 975 lb-ft of torque, paired with a smooth 10-speed automatic transmission and a 4x4 drivetrain. The Gooseneck/5th Wheel Prep Package provides a versatile hitch platform ready for heavy towing needs, perfect for hauling trailers or equipment. Safety is paramount with features like Automatic Highbeams, Blind Spot Monitor, Front Collision Mitigation, Lane Departure Warning, and Cross-Traffic Alert, ensuring confidence on every drive.

Inside, the crew cab offers seating for five with heated and cooled leather front seats, power-adjustable driver and passenger seats with lumbar support, seat memory, and even a seat-massage function for long hauls. The bed is protected by a durable liner and includes a fold-out assist handle for easier access. Power retractable running boards and heated mirrors add convenience and functionality, while the integrated tailgate step simplifies loading and unloading. With premium tech such as an Aerial View Display System, Heads-Up Display, and Adaptive Cruise Control, this Sierra 2500HD AT4X is built to perform and protect in any environment.