* The truck's weight. The first number is typically the truck's weight in tons. For example, a truck with a "53" on its hood weighs 53,000 pounds.
* The truck's engine size. The second number is typically the truck's engine size in liters. For example, a truck with a "10" on its hood has a 10-liter engine.
* The truck's model year. The third number is typically the truck's model year. For example, a truck with a "22" on its hood is a 2022 model.
In addition to these three numbers, some semi-trucks also have other markings on their hoods. For example, some trucks have the manufacturer's logo or name on their hoods. Others may have the company's name or logo on their hoods.
The numbers and other markings on semi-trucks can help drivers identify the truck's weight, engine size, model year, and other important information.
