Power through any challenge with the 2026 GMC Sierra 3500HD AT4 Crew Cab 4WD in Sterling Metallic—where rugged capability meets refined comfort for demanding Canadian drivers.

Designed for those who require serious hauling and towing power, the Sierra 3500HD features a robust Duramax 6.6L Turbo-Diesel V8 engine delivering an impressive 470 horsepower and a staggering 975 lb-ft of torque. This powerhouse is paired with a 10-speed automatic transmission and a locking limited-slip differential, ensuring maximum control and performance on tough terrains or heavy loads. The 4x4 drivetrain and integrated tow hooks make it ideal for navigating rugged landscapes or pulling trailers with confidence.

Inside, the AT4 trim offers premium leather bucket seats with heating and cooling functions, plus adjustable lumbar support and memory settings to keep you comfortable on long hauls. Advanced safety technologies such as Blind Spot Monitor, Lane Departure Warning, Front Collision Mitigation, and an Aerial View Display System provide peace of mind in all driving conditions. Convenience features like remote engine start, power folding mirrors, and an integrated tailgate step enhance everyday usability. Whether on the job site or off the beaten path, this Sierra 3500HD is engineered to meet the needs of drivers who demand strength, sophistication, and advanced technology in one commanding package.