When you need a truck that can handle serious work, the 2026 GMC Sierra 3500 HD has the capability features to get it done. Two engine options are available. The 6.6-liter V8 gas engine makes 401 horsepower and 464 pound-feet of torque. If you want more muscle for towing, the 6.6-liter Duramax Turbo-Diesel V8 produces 470 horsepower and an incredible 975 pound-feet of torque. A 10-speed Allison automatic transmission comes standard on both engines, making gear shifts easy when hauling heavy loads. 4-wheel drive (4WD) keeps you moving on job sites around Vacaville.
Towing becomes simpler with helpful technology in this truck. The standard Trailering Package adds a trailer hitch with Hitch Guidance to help line up your trailer. The available In-Vehicle Trailering App provides checklists, maintenance reminders, and trailer electrical diagnostics right on your screen. For those who tow large trailers near Vacaville, CA job sites, the Gooseneck and 5th Wheel Prep Package offers a hitch platform with a bed-mounted 7-pin trailer harness. You can also add dual rear wheels with a 14,000-pound gross vehicle weight rating (GVWR) for maximum hauling ability.
Stop by GMC of Vacaville at 350 Orange Dr. to check out the 2026 GMC Sierra 3500 HD and see how these capability features can work for you.