Experience the power and capability of the 2026 GMC Sierra 2500HD AT4X, a rugged 4x4 crew cab truck built for demanding work and confident driving.

Powered by a robust 6.6L V8 gasoline engine with direct injection and variable valve timing, this Sierra delivers 401 horsepower and 464 lb-ft of torque, paired with a smooth 10-speed automatic transmission. Its 4-wheel drive system and locking limited-slip differential ensure traction and control in challenging conditions. The truck features a bed liner and integrated tailgate step for easy loading, along with power retractable running boards and a fold-out bed-mounted assist handle for added convenience.

Inside, the cabin is trimmed in obsidian rush full-grain leather with heated and cooled front bucket seats, heated rear seats, and power-adjustable driver and passenger seats with lumbar support and memory settings. Enjoy advanced safety with blind spot monitoring, cross-traffic alert, lane departure warning, front collision mitigation, and automatic high beams. The truck also includes adaptive cruise control, a heads-up display, an aerial view camera system, and a premium sound system.

Additional rugged features include aluminum wheels, tow hooks, a tow hitch, and a gooseneck/5th wheel prep package with a hitch platform and trailer harness, making this Sierra 2500HD AT4X ready for heavy-duty towing and demanding tasks.