Experience unmatched capability and refined comfort with the 2026 GMC Sierra 2500HD AT4X Crew Cab 4WD, designed for those who demand power and sophistication in every drive.

Built to conquer the toughest jobs, the Sierra 2500HD AT4X is powered by a robust Duramax 6.6L Turbo-Diesel V8 engine delivering an impressive 470 horsepower and a staggering 975 lb-ft of torque. This diesel powerhouse, paired with a 10-speed automatic transmission and locking limited-slip differential, ensures exceptional towing and hauling performance, perfect for heavy-duty work or weekend adventures. The 4x4 drivetrain and advanced traction control provide confidence on all terrains, while integrated features like the bed liner and tailgate step make loading and unloading effortless.

Inside, the crew cab offers premium leather seating with heated, cooled, and massaging front seats, plus heated rear seats for passenger comfort. The driver benefits from adjustable lumbar support and seat memory, ensuring every journey is tailored to perfection. Cutting-edge technology such as the aerial view display system, heads-up display, adaptive cruise control, and blind spot monitoring enhances safety and convenience. Power retractable running boards and a sun/moonroof add to the truck’s rugged yet refined character. Finished in Summit White, this Sierra 2500HD AT4X is ready to tackle any challenge with confidence and style.