Conquer the Road with the 2026 GMC Sierra 3500HD AT4: A Diesel Powerhouse Designed for the Adventurous Canadian Driver Seeking Ultimate Performance and Unmatched Durability

Experience the thrill of commanding the 2026 GMC Sierra 3500HD AT4, a truck engineered for those who demand more from their vehicle. With its robust Duramax 6.6L Turbo-Diesel V8 engine delivering an impressive 470 horsepower and 975 lb-ft of torque, this powerhouse is built to tackle any challenge. The AT4 trim offers a perfect blend of rugged capability and refined comfort, featuring a sophisticated 10-speed automatic transmission and advanced four-wheel drive system for superior off-road performance.

The Sierra 3500HD AT4 is equipped with cutting-edge technology, including a multicolour 15" diagonal head-up display and a rear camera mirror, ensuring you stay connected and aware on every journey. The AT4 Premium Plus Package enhances your driving experience with a power sunroof and off-road high clearance steps, while the Gooseneck/5th Wheel Prep Package ensures you're ready for any towing task. Inside, enjoy the luxury of leather seats with heating and cooling options, and a 13.4" diagonal premium GMC infotainment system with wireless Android Auto and Apple CarPlay.

This truck is more than just a vehicle; it's a statement of strength, style, and sophistication.