Experience the power and capability of the 2026 GMC Sierra 2500HD AT4X Crew Cab 4WD, designed for demanding work and rugged adventures in Onyx Black.

This heavy-duty truck is powered by a Duramax 6.6L Turbo-Diesel V8 engine delivering an impressive 470 horsepower and 975 lb-ft of torque, paired with a 10-speed automatic transmission. Its diesel fuel compatibility and turbocharged performance ensure robust towing and hauling capacity. The Gooseneck/5th Wheel Prep Package includes a hitch platform and bed-mounted 7-pin trailer harness, ready for serious towing tasks.

Safety is prioritized with features such as Automatic Highbeams, Blind Spot Monitor, Cross-Traffic Alert, Front Collision Mitigation, Lane Departure Warning, and multiple airbags. Stability and traction control systems enhance confidence on all terrains.

The AT4X trim adds rugged style with 18-inch machined aluminum wheels featuring high gloss black accents, power retractable running boards, and an integrated tailgate step. Inside, the cabin offers heated and cooled leather front bucket seats with power adjustments, lumbar support, seat memory, and massage functions for driver and passenger comfort. Rear heated seats and a pass-through rear bench provide versatility.

Technology includes a 13.4-inch diagonal premium infotainment system with Google built-in apps, Bluetooth streaming, and wireless smartphone integration. The universal vehicle module supports custom equipment controls for worksite efficiency. This Sierra 2500HD AT4X is built to handle your toughest jobs with confidence and comfort.