2025 GMC Sierra 3500 HD

The 2025 Sierra 3500 HD shows off its might in several trims, each tailored to specific needs and preferences. The functionality-first Pro trim brings the essential features for those seeking a reliable workhorse. The SLE and SLT trims add conveniences like cab-mounted cargo lights, animated taillamps and fog lamps, rain-sensing wipers, power-folding trailer mirrors, and the highly versatile MultiPro™ Tailgate. For the adventurer, the AT4 and AT4X get wild, boasting trail-ready features like a factory-installed lift, up to 35” Goodyear® mud-terrain tires, and heavy-duty skid plates. The AEV Special Edition adds an air of exclusivity with stamped steel elements and racing-inspired Salta wheels. If it’s luxury you crave, the Denali and Denali Ultimate show off distinguishing features like the Vader Chrome grille, illuminated power assist steps, 20” ultra-bright machined wheels, and details that hint at the lavish interior that awaits.

The 3500 HD’s strength starts with a 6.6L V8 gas engine that offers up 401 hp and 464 lbs.-ft. of torque, ensuring that the Sierra 3500 HD is ready to handle any heavy-duty task. For even more towing capacity and raw power with exceptional efficiency, the 6.6L Duramax® Turbo-Diesel V8 is the ultimate choice. This engine generates a formidable 470 hp and 975 lbs.-ft. of torque, making the Sierra 3500 HD one of the most powerful trucks in its class. These engines are mated to the renowned Allison® 10-speed automatic transmission, which enhances the truck’s performance while maintaining a smooth, responsive driving experience.

The Duramax® Diesel engine comes equipped with a Class-Exclusive 2.5-inch factory-installed lift and the 4-wheel-drive option, empowering the Sierra 3500HD to venture off the beaten path and tackle rough terrain. With a monstrous 36,000-lb. towing capacity, it stands among the best in the industry, making hauling massive trailers and equipment effortless. The ProGrade® Trailering System and up to 14 camera views, including a transparent trailer view, give you unshakable confidence for hauling. Handling is precise and intuitive, with the Electronic Stability Control and Hill Start Assist on the job, even in extreme conditions. For off-road prowess, the AT4X comes prepared with a 1.5” factory lift, twin-tube shocks, advanced suspension, and a rear e-locking differential for confident trailblazing. Whatever your demands are, this truck stands ready.

The 3500HD offers a cabin to fit your preferences, offering layouts for work durability and weather resistance or indulgent luxury after a long day. The Denali Ultimate trim is the pinnacle of opulence, cradling you in full-grain leather seating, laser-etched topographical maps of Mt. Denali in real wood accents, and Best-in-Class heated, ventilated, 16-way power-adjustable front seats with massage. The center console is intelligently designed with a user-friendly, Largest-in-Class 13.4” infotainment touchscreen with wireless Apple CarPlay® and Android Auto™ integration. A 12.3-inch customizable Driver Information Center and a 15” Head-Up Display complete the convenient advancements. For added convenience, the Sierra 3500HD also features Dual-zone automatic climate control, allowing the driver and passengers to customize their comfort. With Best-in-Class Crew Cab front head and legroom, you’ll be comfortable for the long haul.

The GMC Pro Safety Package fortifies this truck, offering features such as the Safety Alert Seat which vibrates to alert you of potential hazards. The Surround Vision Camera provides a bird’s-eye view around the truck, making parking and maneuvering in tight spaces easier and safer. For added reassurance, Forward Collision Alert, Lane Change Alert with Side Blind Zone Alert, and Rear Cross Traffic Alert, work together to reduce the risk of accidents. Additionally, the GMC Pro Safety Plus suite includes Automatic Emergency Braking, Following Distance Indicator, and Front Pedestrian Braking, helping to mitigate risks in various driving situations.