Experience the power and precision of the 2026 GMC Sierra 3500HD AT4 Crew Cab 4WD, designed for demanding work and rugged Canadian terrain with unmatched capability.

Built to handle the toughest jobs, this Sierra 3500HD is powered by a Duramax 6.6L Turbo-Diesel V8 engine delivering an impressive 470 horsepower and a massive 975 lb-ft of torque, perfect for towing heavy loads or navigating steep inclines. The 10-speed automatic transmission and locking limited-slip differential ensure smooth, confident control whether on highways or off-road trails. Its 4x4 drivetrain and integrated tow hooks provide exceptional traction and utility in all weather conditions.

Inside, the AT4 trim offers premium leather bucket seats with heating, cooling, and power adjustments, including lumbar support and memory settings for driver and passenger comfort during long hauls. The advanced safety suite features blind spot monitoring, lane departure warning, front collision mitigation, and an aerial view display system, enhancing awareness and protection on busy roads or remote job sites.

Practical touches like the bed liner, integrated tailgate step, running boards, and power folding heated mirrors make loading, unloading, and accessing the cabin effortless. Equipped with adaptive cruise control, navigation, and a premium sound system, this Sierra 3500HD blends rugged capability with refined convenience for the discerning Canadian driver.