This truck has more muscle than your gyms entire weight room and it doesn't skip leg day. Get ready for the 2020 GMC Sierra 3500HD AT4, a heavy-duty beast built for those who demand power, capability, and a bold presence on or off the road. Under the hood, you'll find a Duramax 6.6L V8 Turbodiesel engine paired with an Allison 10-speed automatic transmission, giving you relentless torque and towing capacity that laughs in the face of heavy loads. Whether you're hauling construction materials, towing a fifth-wheel, or hitting the backcountry, the AT4 trim gives you off-road prowess with advanced trailering tech to match. The aggressive stance, factory lift, and skid plates make this truck more than just brawn its smartly equipped for the toughest terrain. And with premium interior touches like leather-appointed seats and advanced infotainment, you'll stay comfortable while conquering any task.
This Sierra 3500HD AT4 also includes the 2-Year/24k Mile Young Auto Group Maintenance Plan, giving you free oil changes, tire rotations, and safety inspections because a truck this powerful deserves proper care without extra hassle. Built for work and play, it blends professional-grade engineering with rugged style that stands out in any setting. With GMCs Prograde Trailering System, integrated bed steps, and a MultiPro tailgate, you're looking at serious innovation packed into a seriously capable machine. Its the kind of truck that doesn't just meet expectations it sets new ones. Tax, title, and license fees are extra, and as always, the vehicle is subject to prior sale, so don't wait around while someone else drives off in your dream truck. Stop by today and take command of the road in a Sierra that's as ambitious as you are.
* The advertised price does not include sales tax, vehicle registration fees, other fees required by law, finance charges and any documentation charges. A negotiable administration fee, up to $115, may be added to the price of the vehicle.
* Images, prices, and options shown, including vehicle color, trim, options, pricing and other specifications are subject to availability, incentive offerings, current pricing and credit worthiness.