Experience the power and precision of the 2026 GMC Sierra 2500HD AT4 in Sterling Metallic, designed for those who demand rugged capability and refined comfort in every drive.

Built to conquer the toughest tasks, the Sierra 2500HD AT4 features a turbocharged 8-cylinder diesel engine paired with a smooth 10-speed automatic transmission, delivering exceptional torque and towing capacity. Its advanced 4x4 drivetrain with a locking limited-slip differential ensures confident traction on any terrain, while integrated tow hooks and a heavy-duty tow hitch make hauling heavy loads effortless. The bed liner and integrated tailgate step enhance durability and ease of use, perfect for work or adventure.

Inside, the crew cab offers premium leather bucket seats with heating, cooling, and adjustable lumbar support for both driver and passenger, ensuring comfort during long hauls. Seat memory and power-adjustable front seats add convenience, while heated rear seats keep all passengers comfortable. The Aerial View Display System and blind spot monitoring with cross-traffic alert provide unmatched situational awareness, enhancing safety on and off the road.

Additional features like adaptive cruise control, remote engine start, and a premium sound system with smart device integration make every journey enjoyable and connected. With the Sierra 2500HD AT4, you get a truck that combines brute strength with sophisticated technology, ready to tackle your busiest days.