Power through any challenge with the 2026 GMC Sierra 3500HD AT4 Crew Cab 4WD, featuring a robust Duramax 6.6L Turbo-Diesel V8 engine and advanced off-road capabilities.

Designed for drivers who demand strength and precision, this Sierra 3500HD is equipped with a powerful 8-cylinder Duramax diesel engine delivering 470 hp and an impressive 975 lb-ft of torque, perfect for heavy towing and hauling. The 10-speed automatic transmission and four-wheel drive with locking limited-slip differential ensure optimal control in all conditions. Safety is paramount with features like Automatic Highbeams, Blind Spot Monitor, Cross-Traffic Alert, Front Collision Mitigation, Lane Departure Warning, and Stability Control. The truck also includes tow hooks and a tow hitch for serious work demands.

Comfort and convenience come standard with heated and cooled front seats, heated rear seats, leather upholstery, power-adjustable driver and passenger seats with lumbar support, and seat memory. The cabin is enhanced by an adaptive cruise control system, an aerial view display, a premium sound system, and Bluetooth connectivity. Exterior features like LED headlights, fog lamps, running boards, heated and power-folding mirrors, and an integrated tailgate step improve functionality and style. Finished in Sterling Metallic, this Sierra 3500HD AT4 is ready to tackle any job with confidence and capability.