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

Powered by a Duramax 6.6L Turbo-Diesel V8 engine delivering 470 horsepower and an impressive 975 lb-ft of torque, this 4x4 crew cab truck handles heavy towing and hauling with ease. The 10-speed automatic transmission and locking limited-slip differential ensure smooth, confident control on any terrain. The Gooseneck/5th Wheel Prep Package provides a versatile hitch platform ready for gooseneck or fifth-wheel towing, making it ideal for serious trailers and equipment.

Inside, the Obsidian Rush interior features full-grain leather seats with heating, cooling, and massage functions for both front and rear passengers, complemented by power-adjustable driver and passenger seats with lumbar support and memory settings. The leather-wrapped steering wheel is heated for comfort in colder climates.

Safety is enhanced with Automatic Highbeams, Blind Spot Monitor, Cross-Traffic Alert, Front Collision Mitigation, Lane Departure Warning, and integrated turn signal mirrors. Convenience features include a heads-up display, aerial view camera system, power retractable running boards, integrated tailgate step, and a bed liner for durability. This Sierra 2500HD AT4X is built to perform and protect on every journey.