Model Description6 x 4 Long Sleeper (73-Inch) with Full Aero PackageVehicle IdentificationVehicle Identification Number (VIN)The Vehicle Identification Number (VIN) is located on thedriver-side door. The VIN and model description are necessarywhen ordering replacement parts or service manuals.Feature CodesFeature Codes are the basis for identifying the components usedon International® Trucks. They are used by sales personnel toorder the truck, by manufacturing to build that truck, and by partspersonnel to service the truck. Many items in this manual areidentified by codes.Feature Codes are a combination of numbers and / or letters.These codes are listed on the Vehicle Line Set Ticket, whichis sometimes known as the vehicle specification card or codesheet.Engine Serial NumberThe engine dataplate provides the engine serial number aswell as other engine information. For the location of this plateand more information about engine components and engineidentification, refer to the Engine Operation and MaintenanceManual.16