The Chevrolet Silverado 2500HD is a full-size, heavy-duty pickup truck. It is available with two- or four-wheel drive and a variety of body styles, powertrains and trim levels. It has a maximum towing capacity of up to 18,100 lbs. when properly equipped, and an available Duramax 6.6L Turbo-diesel V8 engine that offers 445 horsepower and 910 lb-ft of torque.