New 2026 GMC Sierra 2500HD

Experience commanding power and advanced capability with the 2026 GMC Sierra 2500HD AT4X Crew Cab, designed for demanding work and confident driving in any terrain.

Powered by a robust 6.6L V8 gasoline engine delivering 401 horsepower and 464 lb-ft of torque, paired with a smooth 10-speed automatic transmission and a 4x4 drivetrain, this truck is built to handle heavy loads and tough conditions. The Gooseneck/5th Wheel Prep Package provides a versatile hitch platform, ready to accommodate gooseneck or fifth-wheel trailers, making it ideal for serious towing needs.

The Sierra 2500HD AT4X features premium leather seats with heating, cooling, and massage functions, plus adjustable lumbar support and seat memory for both driver and passenger, ensuring comfort on long hauls. Power retractable running boards and a bed-mounted assist handle offer convenience and safety when entering or exiting the vehicle or accessing the bed, which is protected by a durable liner and equipped with an integrated tailgate step.

Safety is comprehensive, with automatic high beams, blind spot monitoring, cross-traffic alert, lane departure warning, front collision mitigation, and multiple airbags. Additional highlights include an aerial view display system, heads-up display, heated mirrors, remote engine start, and a premium sound system, all designed to enhance your driving experience.