2026 GMC Sierra 2500HD

The 2026 GMC Sierra 2500 HD is engineered for strength and capability. It comes standard with a powerful 6.6-liter V8 gas engine that delivers 401 horsepower and 464 pound-feet of torque, ensuring you have the muscle to tow and haul with confidence. For those who demand even more power, the available 6.6-liter Duramax Turbo-Diesel V8 generates an impressive 470 horsepower and 975 pound-feet of torque. Paired with an Allison® 10-speed automatic transmission, this powertrain provides smooth shifts and optimal performance under heavy loads.

With a maximum towing capacity of up to 18,500 pounds when properly equipped, the Sierra 2500 HD is ready to tackle trailers, boats, or construction equipment. Its advanced trailering technology, including an available ProGrade Trailering System and up to 14 camera views, makes hitching and maneuvering easier than ever.

Step inside the 2026 GMC Sierra 2500 HD, and you’ll find a cabin designed for both comfort and functionality. Premium materials and thoughtful details create an upscale atmosphere, while practical features ensure you’re ready for any task. The spacious interior offers seating for up to six passengers, with available leather-appointed seats and heated front seats for added luxury.

Storage solutions abound, from under-seat compartments to rear-seatback storage, giving you plenty of room to stow tools or personal items. The Crew Cab configuration provides ample legroom for rear passengers, making long drives more comfortable for everyone on board.

The Sierra 2500 HD is packed with cutting-edge technology to keep you connected and in control. At the heart of the dashboard is an available 13.4-inch diagonal touchscreen infotainment system with wireless Apple CarPlay® and Android Auto™ integration. This system allows you to access your favorite apps, navigation, and media effortlessly.

For those who need to stay productive on the go, the available Wi-Fi hotspot ensures you’re always connected. Additionally, the truck offers a customizable 12.3-inch digital driver information center that displays key vehicle data at a glance. Advanced trailering technologies like Trailer Side Blind Zone Alert and an in-vehicle trailering app further enhance your driving experience.

Safety is a top priority in the 2026 GMC Sierra 2500 HD. The truck comes equipped with GMC Pro Safety, a suite of advanced driver-assistance features designed to help prevent accidents and protect occupants. Standard features include Forward Collision Alert, Automatic Emergency Braking, Lane Departure Warning, and IntelliBeam® automatic high beams.

For added peace of mind, available safety options include Rear Cross Traffic Alert, Lane Change Alert with Side Blind Zone Alert, and an HD Surround Vision camera system that provides a bird’s-eye view of your surroundings. These technologies make navigating busy streets or tight job sites safer and more manageable.

The 2026 GMC Sierra 2500 HD is available in multiple trims to suit a variety of preferences and needs:

Each trim level offers unique features and customization options, allowing you to build the perfect Sierra 2500 HD for your lifestyle.

The 2026 GMC Sierra 2500 HD combines power, refinement, and advanced technology to deliver a heavy-duty truck that excels in every category. Whether you’re towing heavy loads or cruising through Kennett, MO, this truck is designed to perform at the highest level while keeping you comfortable and connected. Visit Glen Sain GMC, Kennett today to explore the Sierra 2500 HD in person or start building your dream truck online!