Conquer the Canadian Terrain with Power and Precision: Introducing the 2026 GMC Sierra 3500HD AT4, Your Ultimate Off-Road Companion

Experience unmatched power and capability with the new 2026 GMC Sierra 3500HD AT4 Crew Cab 4WD. Designed for those who demand more from their truck, this beast boasts the formidable Duramax 6.6L Turbo-Diesel V8 engine, delivering an impressive 470 horsepower and 975 lb-ft of torque. Whether you're towing heavy loads or navigating rugged landscapes, the Sierra 3500HD provides the strength and reliability you need.

The AT4 trim enhances your off-road adventures with the Off-Road High Clearance Step and Gooseneck/5th Wheel Prep Package, ensuring you're ready for any challenge. The Technology Package, featuring a multicolour 15" diagonal head-up display and rear camera mirror, keeps you informed and confident on every journey.

Inside, luxury meets functionality with leather seats, heated and cooled front seats, and a premium 13.4" diagonal GMC Infotainment System with Google built-in apps. Stay connected with wireless Android Auto and Apple CarPlay, while the advanced safety features like Blind Spot Monitor and Lane Departure Warning ensure peace of mind.

The 2026 Sierra 3500HD AT4 is not just a truck; it's a statement of power, luxury, and capability.