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The 2026 GMC Sierra 30500 HD provides impressive strength for towing with bold style that captures your attention. This heavy-duty pickup truck includes comfort and convenience to enhance the driving experience. Utilize advanced technology to keep you safe and informed.
The Duramax 6.6L Turbo-Diesel V8 engine provides up to 470 horsepower for the 2026 GMC Sierra 3500 HD and 975 lb.-ft of torque. This engine is paired with a ten-speed automatic transmission for smooth handling even with a heavy load. You also have the option of the 6.6l V8 gas engine, which produces 401 horsepower and 464 lb.-ft of torque.
While the exterior of the 2026 GMC Sierra 3500 HD is all about being aggressive and showcasing the strength of the truck, the interior is practical and comfortable with upscale materials. The Crew Cab models offer best-in-class head and legroom in the front. Each trim offers a unique front hood and grille while signature lighting gets the truck noticed even after dark.
Trailering tech makes towing a lot safer and easier in the 2026 GMC Sierra 3500 HD with ProGrade Trailering System. This system streamlines hitching to a trailer and towing. Adaptive Cruise Control with Trailering makes it safer to switch lanes when you’re pulling a load. Keep track of vehicle performance with the 12.3-inch diagonal color driver information center, which can be projected onto the windshield with the 15-inch diagonal multicolor Head-Up Display.
The GMC Sierra 3500 HD adds a few updates for the 2026 model year. Two new color options are available with Glacier White Tricoat and Coastal Dune. The SLT trim now has the option of adding the MultiPro Tailgate.
The GMC Sierra 3500 HD is a practical choice for drivers who need to tow equipment for their businesses around St. Louis and Granite City. This pickup is also ideal for families who want to get away from Alton and the city for an outdoor adventure with their RV or boat. Modern convenience features and comfort amenities ensure everyone enjoys the ride, whether it’s for work or play.
Quality Buick GMC is dedicated to providing the best selection of new and used vehicles for our customers. We offer a wide selection of brand-new models in our GMC showroom. You can even buy your next GMC truck online for added convenience. To get started, fill out our online application and browse our new inventory to see what we have available that suits your needs.
