Detroit DD15 6 Cylinder 14.8 L Diesel 455 hp Engine, 2024 US EPA Label, Requires Diesel Exhaust Fluid, Retarder, 12-Speed Automated Transmission, 12500 lb Front Axle, 40000 lb Rears, 2.16:1 Axle Ratio, 52500 lb GVWR, Air Ride Cab, 72 in High Rise Sleeper Cab, Bunk Beds, Aluminum Outer Wheels, 295/75R22.5, Air...