New 2026 GMC Sierra 3500HD

Experience commanding power and advanced technology in the 2026 GMC Sierra 3500HD Denali, featuring a Duramax 6.6L Turbo-Diesel V8 engine and robust 4x4 capability.

This heavy-duty crew cab pickup is built for serious work and comfort, powered by a turbocharged 8-cylinder Duramax diesel engine delivering 470 hp and an impressive 975 lb-ft of torque. The 10-speed automatic transmission and locking limited-slip differential ensure confident handling on any terrain. The truck’s exterior in Polar White Tricoat is complemented by 20-inch ultra-bright machined wheels with bright chrome inserts and black painted pockets, all-terrain tires, and running boards for easy access. The integrated tailgate step and bed liner enhance utility, while the gooseneck/5th wheel prep package makes towing large trailers effortless.

Inside, the jet black cabin features forge perforated leather bucket seats with heating, cooling, and power adjustments, plus memory settings for driver and passenger. The Denali Reserve Package adds a power sunroof and a technology package with a 15-inch multicolour head-up display and rear camera mirror for enhanced visibility. Safety is comprehensive with blind spot monitoring, front collision mitigation, lane departure warning, and adaptive cruise control. Trailer tire pressure sensors and an aerial view display system provide added confidence when towing. This Sierra 3500HD Denali is engineered to meet the demands of the toughest jobs with premium comfort and cutting-edge technology.