Pros can’t be confined. The Next Generation Sierra Heavy Duty invites you to pull your world with you. Get out there in the premium-packed Sierra HD Denali or for road trips without roads, the First Ever Sierra HD AT4. Go explore the world—without leaving yours behind. Experience the heavy-duty truck for you—the Next Generation 2020 GMC Sierra Heavy Duty.

For 2020, we had one mission—to help you achieve more and do it all with greater confidence. The Next Generation Sierra Heavy Duty is engineered to be stronger with maximum trailering capability. And smarter with the all-new available ProGrade™ Trailering System and the confidence it offers—when hooking up your trailer, while on the road and when backing your trailer into place. Along with the other available innovations below, Sierra Heavy Duty is engineered for heavy-duty power, poise and presence. Sierra Heavy Duty: There’s a lot of power behind that name. The available legendary Duramax 6.6L Turbo Diesel V8 engine is paired with the all-new Allison 10-speed automatic transmission, which is designed to deliver all 910 lb.-ft. of torque in first gear on 3500 Heavy Duty models. The Diesel After-Run cooling function is designed to help the engine cool down following heavy usage. Also, an available chain-driven Power Takeoff feature is factory-installed on the Allison transmission so you can transfer power from the engine to aftermarket equipment, such as a generator or hydraulic pump.

Start with a test drive at our Bannister Vernon dealership at 4703 27th St., Vernon or give us a call at (888)410-5761 to book an appointment with a sales associate.

Pros can’t be confined. The Next Generation Sierra Heavy Duty invites you to pull your world with you. Get out there in the premium-packed Sierra HD Denali or for road trips without roads, the First Ever Sierra HD AT4. Go explore the world—without leaving yours