Detroit 6 Cylinder Ultra Low Sulfur Diesel 455 hp Engine, 2022 US EPA Label, Requires Diesel Exhaust Fluid, Air Conditioner, Cruise Control, Power Windows, Engine Brake, Volvo ATO2612F 12-Speed Automated Transmission, Differential Lock, 13200 lb Front Axle, 38000 lb Rears, Meritor MT-40-14X Drive Axles, 2.64:1 Axle Ratio, 51200 lb GVWR, Air Ride Cab, 70 in High Rise Sleeper Cab, Bunk Beds, Bunk Heater, Aluminum Wheels, 295/75R22.5, Volvo Air Ride Suspension