New 2026 GMC Sierra 3500HD

Experience the power and capability of the 2026 GMC Sierra 3500HD AT4, designed for demanding work and off-road adventures with premium comfort and advanced technology.

This diesel-powered 8-cylinder powerhouse delivers an impressive 470 hp and 975 lb-ft of torque, paired with a smooth 10-speed automatic transmission and 4x4 drivetrain for exceptional towing and hauling. The Gooseneck/5th Wheel Prep Package offers a versatile hitch platform ready for heavy-duty towing needs. Off-road capability is enhanced by the AT4 Premium Plus Package, which includes the Off-Road High Clearance Step and Technology Package, while body-colour wheel arch mouldings add rugged style.

Inside, enjoy heated and cooled leather bucket seats with power adjustment and memory settings for both driver and passenger, plus heated rear seats and lumbar support for all-day comfort. The crew cab offers seating for five with a pass-through rear seat for added convenience.

Safety is comprehensive with features like Blind Spot Monitor, Front Collision Mitigation, Lane Departure Warning, and Trailer Tire Pressure Monitor Sensors, ensuring confidence on every journey. Additional highlights include an aerial view display system, adaptive cruise control, remote engine start, LED headlights, and integrated turn signal mirrors. Practical touches such as a bed liner, integrated tailgate step, running boards, and tow hooks complete this capable and refined truck.