2025 GMC Sierra 2500HD

The formidable exterior of the 2025 GMC Sierra 2500HD is a direct reflection of its immense capability, with each trim level offering a distinct expression of professional-grade design. The lineup begins with the work-focused Pro, featuring a bold black grille and durable, functional appointments. The SLE and SLT trims introduce more chrome accents and upgraded wheel designs, elevating the truck's presence. For those who venture beyond paved roads, the AT4 presents a ruggedly handsome aesthetic with a factory-installed 1.5-inch suspension lift, aggressive Goodyear® Wrangler Territory mud-terrain tires, and distinctive red vertical recovery hooks. At the pinnacle of the range, the Denali and Denali Ultimate redefine heavy-duty luxury. The Denali is distinguished by its signature chrome grille and premium detailing, while the Denali Ultimate stands apart with its exclusive Vader chrome grille, unique 20-inch Ultra-bright machined aluminum wheels, and standard power assist steps. Every model benefits from functional innovations like the available six-function GMC MultiPro Tailgate, which offers unparalleled flexibility for loading, working, and accessing the cargo bed.

At the core of every 2025 GMC Sierra 2500HD lies a powertrain engineered for relentless performance and durability. We provide two exceptional engine choices, each paired with the legendary Allison® 10-speed automatic transmission for optimized power delivery and efficiency. The standard engine is a robust 6.6L V8 gas engine, delivering a formidable 401 horsepower and 464 lb.-ft. of torque, providing confident performance for a wide range of demanding applications. For the ultimate in trailering might, we offer the renowned 6.6L Duramax® Turbo-Diesel V8 engine. This powerhouse has been enhanced to produce an astounding 470 horsepower and an immense 975 lb.-ft. of torque. The massive, low-end torque generated by the Duramax® provides the brute force necessary to pull the heaviest loads with composed authority, making it the premier choice for serious towing and hauling.

The 2025 GMC Sierra 2500HD is engineered from the ground up to deliver staggering performance metrics. Its high-strength, fully boxed steel frame provides the rigid backbone required for heavy-duty work, enabling a maximum conventional towing capacity of up to 20,000 pounds and a max 5th wheel/gooseneck rating of up to 22,430 pounds when equipped with the Duramax® Turbo-Diesel. Performance, however, is about more than just raw numbers; it is about intelligent control. That is why we equip the Sierra HD with the most advanced trailering assistance technologies in its class. The available ProGrade™ Trailering System features an in-vehicle Trailering App and up to 14 available camera views, including a transparent trailer view that allows the driver to virtually see through a compatible trailer. This suite of technologies, combined with a robust suspension and powerful braking systems, provides the driver with the confidence and control needed to manage immense loads safely and effectively.

The cabin of the 2025 GMC Sierra 2500HD serves as a sanctuary of comfort and a high-tech command center. The interior design artfully blends rugged durability with premium materials and cutting-edge technology. Drivers are greeted by a large, available 13.4-inch diagonal center touchscreen and a 12.3-inch diagonal driver information center, creating an immersive and intuitive digital cockpit. In the upper trims, the cabin is transformed into a luxurious retreat. The Denali and Denali Ultimate models feature authentic, premium materials such as perforated leather seating surfaces, real open-pore wood trim, and brushed aluminum accents. The Denali Ultimate takes this luxury to its zenith with an Alpine Umber interior featuring full-grain leather, a premium microsuede headliner, and 16-way power-adjustable front seats with a massage feature. With clever storage solutions and ample passenger space, the Sierra 2500HD's interior is as functional as it is opulent.

We believe that the most powerful truck should also be the smartest and safest. The 2025 GMC Sierra 2500HD is equipped with a comprehensive suite of advanced safety and driver-assistance features to protect you on the job site and on the highway. The standard GMC Pro Safety package includes Forward Collision Alert, Automatic Emergency Braking, Lane Departure Warning, and IntelliBeam® auto high beams. For enhanced awareness, especially when trailering, we offer a host of available technologies. Trailer Side Blind Zone Alert extends the blind zone area to account for the length of your trailer, while available Adaptive Cruise Control with Trailering is specifically calibrated to account for the additional drag and increased braking distances required when pulling a heavy load. These intelligent systems provide an extra layer of security, ensuring you can perform the toughest jobs with complete peace of mind.