As of 1980, the format of all truck serial numbers is the same regardless of the vehicle's make and model. Trucks manufactured prior to 1980 have serial numbers that vary in length and composition.
A truck's serial number is also called its vehicle identification number, or VIN. A VIN consists of 17 unique alphanumeric digits. Each digit has an individual identifying purpose.
The first character identifies vehicle's country of manufacture, and the second specifies the company that produced the vehicle. The other characters give details such as vehicle type, model, series, engine type and year. The final digits supply plant and production sequence information.