2026 GMC Sierra 2500HD AT4X

Experience unmatched capability and comfort with the 2026 GMC Sierra 2500HD AT4X Crew Cab, featuring a powerful Duramax 6.6L Turbo-Diesel V8 and advanced towing readiness.

Built for those who demand strength and reliability, this Sierra 2500HD AT4X is equipped with a 470 hp, 975 lb-ft torque Duramax turbo-diesel engine paired with a smooth 10-speed automatic transmission and four-wheel drive. The Gooseneck/5th Wheel Prep Package provides a hitch platform designed to accept gooseneck or 5th wheel hitches, complete with stamped bed holes and a 7-pin trailer harness, making heavy towing effortless. Practical touches like the bed-mounted fold-out assist handle add convenience when accessing the truck bed.

Inside, the crew cab comfortably seats five with leather bucket seats that offer heating, cooling, adjustable lumbar support, and even a seat massage function for driver and passenger. Memory settings for seats and mirrors enhance personalised comfort. The cabin also features a heads-up display, an aerial view display system, and a premium sound system with Bluetooth connectivity.

Safety is comprehensive, including automatic high beams, blind spot monitoring, cross-traffic alert, front collision mitigation, lane departure warning, and multiple airbags. Exterior highlights include power retractable running boards, integrated tailgate step, fog lamps, and aluminum wheels with all-season tires, ensuring readiness for any journey.