2026 GMC Sierra 3500 HD for Sale near Mechanicsburg, PA

In some cases, you need a truly mighty vehicle to see your work projects through to completion. The 2026 GMC Sierra 3500 HD is a full-size pickup truck designed to handle projects that other vehicles simply cannot. See what sets this vehicle apart from others on the market today, and then come by our showroom at Jack Giambalvo Buick GMC to watch one in action.

Performance

Everything you need to know about this full-size pickup truck can be summed up by its 36,000-lb. maximum towing capacity¹, more than enough power to haul your recreational vehicles or heavy equipment for work. You can equip this model with one of two engines, beginning with a standard 6.6L V8 unit that creates a total of 401 horsepower and 464 lb.-ft. of torque. The next option is an available Duramax 6.6L turbocharged V8 that operates on diesel, bringing about a total of 470 horsepower and 975 lb.-ft. of torque for all your toughest jobs. Both of these vehicles are paired with a standard Allison® 10-speed automatic transmission that allows for seamless shifting even when you’re putting the truck through its paces. Also, the 2026 Sierra 3500 HD has a standard RWD format along with an available 4WD setup, so it can go off the beaten path to fresh jobsites in Mechanicsburg.

Bed

While the exterior of the 2026 GMC Sierra 3500 HD represents a masterclass in bold design, let’s focus on the rear storage compartment of this model, starting with the available GMC MultiPro Tailgate. This feature has six different configurations to make loading and accessing the cargo box easy, and it comes with a power lock and release capability. The bed comes in two setups, standard and long. The former is six feet nine inches in length, and the latter is eight feet. In the standard configuration, you’ll have a total of 69.50 cubic ft. of cargo space² in which to store tools or take a new bedframe back to your home. Another bit of proof that this vehicle is designed with workers in mind comes from the 51.85-inch minimum bed width, more than enough clearance to lay a piece of plywood or drywall flat in the back. Lastly, you’ll find a set of four available cargo tie-downs in the back of this truck to secure your loads before heading to the Pennsylvania Turnpike.

Technology

You’ll find numerous tech features designed to enable your journeys in this vehicle, like the standard 12.3-inch diagonal digital Driver Information Center as well as the 13.4-inch diagonal center touchscreen. The latter is used to handle your entertainment and navigation with standard tools like wireless Android Auto™³ and Apple CarPlay®⁴ compatibility, which connects your smartphone’s kit to the 2026 Sierra 3500 HD. Doing so will let you use navigation features to reach the Soldiers and Sailors Memorial Park with the apps you’re most familiar with. The cabin has two options for recharging your mobile device, either the two standard USB ports in the front row or the available wireless charger⁵ device. In any case, keeping your phone charged to stay in contact with your loved ones or your customers is a simple matter. If you’d like to uncover more of the features that make this full-size pickup truck special, then come by our location for a one-on-one tour with our team members.

1. Requires a 3500 HD Regular Cab long bed 2WD DRW model with available Duramax 6.6L Turbo-Diesel V8 engine, Max Trailering Package, gooseneck hitch, Convenience Package and 120-volt power outlet. Maximum trailering ratings are intended for comparison purposes only. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The trailering capacity of your specific vehicle may vary. The weight of passengers, cargo and options or accessories may reduce the amount you can trailer.
2. Properly secure all cargo.
3. Vehicle user interface is a product of Google and its terms and privacy statements apply. Requires the Android Auto app on Google Play and an Android compatible smartphone running Android™ 5.0 or higher. Data plan rates apply. Android Auto is a trademark of Google LLC.
4. Vehicle user interface is a product of Apple and its terms and privacy statements apply. Requires compatible iPhone and data plan rates apply. Apple CarPlay is a trademark of Apple Inc. Siri, iPhone and iTunes are trademarks for Apple Inc, registered in the U.S. and other countries.
5. The system wirelessly charges one compatible mobile device. Some phones have built-in wireless charging technology and others require a special adapter/back cover. For a list of GM wireless charging-compatible mobile devices see my.gmc.com/learnAbout/wireless-charging. If your device is not on this list, please consult your carrier.