2019 WESTERN STAR 4700, Heavy Duty Trucks - Dump Trucks, Axle Configuration: 8x4Tire Size - Rear: 255/70R22.5Tire Size - Front: 425/65R22.5AuxiliaryPowerUnit: NoBrakeType: AIREngineMake: DetroitEngineModel: DD13FifthWheelType: NONEWheels: AA