New 2026 GMC Sierra 3500HD

Experience the power and capability of the 2026 GMC Sierra 3500HD AT4 Crew Cab, designed for demanding work and rugged adventures in Sterling Metallic.

Powered by a Duramax 6.6L Turbo-Diesel V8 engine delivering 470 horsepower and an impressive 975 lb-ft of torque, this heavy-duty truck is built to handle the toughest tasks with ease. The 10-speed automatic transmission and 4x4 drivetrain with locking limited-slip differential ensure confident performance on any terrain. The Gooseneck/5th Wheel Prep Package adds versatility for serious towing needs, while the Snow Plow Prep/Camper Package enhances durability with skid plates and a 220-amp alternator.

Inside, the cabin blends comfort and technology with heated and cooled leather bucket seats featuring power adjustments and memory settings for driver and passenger. The technology package includes a multicolour 15-inch diagonal head-up display and a rear camera mirror, keeping vital information in clear view. Safety is comprehensive with features like blind spot monitoring, cross-traffic alert, front collision mitigation, lane departure warning, and adaptive cruise control.

Additional rugged touches include integrated tailgate step, running boards, bed liner, and all-weather floor liners with the AT4 logo. This Sierra 3500HD AT4 is ready to tackle any challenge while providing exceptional comfort and advanced safety for drivers who demand more.