The 2020 GMC Sierra 3500HD Denali is a heavy-duty pickup truck that combines exceptional towing capabilities with luxury features. Under the hood, is a 6.6-liter Duramax turbo-diesel V8, delivering 445 horsepower and 910 lb-ft of torque. Mated to a 6-speed automatic transmission, with four-wheel drive as standard. The Denali trim adds upscale touches such as leather seating, advanced safety features, and a premium audio system. With a maximum towing capacity of up to 35,500 pounds when properly equipped, the Sierra 3500HD Denali is designed to handle substantial loads with ease.2 Years Young Auto Care includes: Three Oil/Filter Changes | Tire Rotation | Fluid Top Off Multi-Point Inspection | Battery Test | Alignment Check. Please call to schedule your test drive today! Price does not include any dealer installed accessories, please see dealer for details and demonstration. Tax, title, and license fees extra.