Experience commanding power and advanced capability with the 2026 GMC Sierra 2500HD AT4X in Sterling Metallic, designed for serious work and rugged adventures.

This 4WD crew cab truck features a robust 6.6L V8 gasoline engine delivering 401 horsepower and 464 lb-ft of torque, paired with a smooth 10-speed automatic transmission. Its locking limited-slip differential and tow hooks enhance traction and towing confidence, while the gooseneck/5th wheel prep package with a dedicated hitch platform and 7-pin trailer harness makes heavy hauling effortless. The bed liner and integrated tailgate step add convenience and durability for tough jobs.

Inside, the Sierra 2500HD AT4X offers premium comfort with full-grain leather seats in Obsidian Rush, including heated and cooled front seats, heated rear seats, power-adjustable driver and passenger seats with lumbar support, seat memory, and even a seat-massage function. The cabin is equipped with an aerial view display system, heads-up display, adaptive cruise control, and a premium sound system, ensuring safety and entertainment on every journey.

Safety is comprehensive with features like automatic high beams, blind spot monitoring, front collision mitigation, lane departure warning, cross-traffic alert, and multiple airbags. Additional convenience comes from power retractable running boards, power folding heated mirrors with memory, and an upfitter switch kit for custom electrical accessories. This Sierra 2500HD AT4X is built to perform and impress.