Introduced as part of the fourth generation, the 2021 Chevrolet Silverado 5500HD is a versatile heavy-duty truck, offered in both RWD and 4WD. A 6.6L Duramax turbo-diesel V8 engine powers it, boasting 350 horsepower with a robust 700 lb.-ft. of torque. This engine comes mated to an Allison transmission. The Silverado 5500HD presents itself in different wheelbase lengths to accommodate various upfits and features a high fuel capacity. For safety, it includes StabiliTrak Electronic Stability Control System, Traction Control, and Frontal Airbags. Its tech amenities pack a high-tech infotainment system, a 7-inch diagonal color touchscreen, Chevrolet Infotainment System, Bluetooth and Apple CarPlay compatibility.