What Engine Does a Semi Truck Have?

A semi truck, otherwise known as a tractor-trailer, is an essential piece of equipment used to transport goods across the country. Semi trucks are large, powerful vehicles that require a powerful engine to provide the necessary torque and power needed to haul heavy loads.

Semi trucks are powered by diesel engines, which have several advantages over gasoline engines. Diesel engines produce more torque than their gasoline counterparts, making them ideal for hauling heavy loads over long distances.

They also tend to be more fuel efficient than gasoline engines, allowing drivers to travel farther on less fuel. Additionally, diesel engines require less maintenance than gasoline engines since they do not have spark plugs or other components that need replacing periodically.

The size and power of the engine in a semi truck will vary depending on its weight capacity and intended use. Smaller semi trucks may have an engine with a displacement of six litres or less while larger rigs may have an engine with up to 15 litres of displacement. Regardless of size, all semi truck engines are designed to meet the rigorous demands of hauling heavy loads over long distances.

Semi trucks also come equipped with several advanced engine features that improve their performance and reliability. For example, many semi truck engines are equipped with turbochargers that help increase fuel efficiency and reduce emissions. Other features such as exhaust brakes and air-intake systems can help reduce wear on the engine and improve overall performance.

In conclusion,

Semi trucks are powered by diesel engines that are specifically designed for hauling heavy loads over long distances. The size and power of the engine in a semi truck will vary depending on its weight capacity and intended use but all feature advanced features such as turbochargers, exhaust brakes and air-intake systems that improve performance and reliability.

Photo of author

Susan Delgado