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How Much Horsepower Does a Semi-Truck Have?

semi truck technician standing outside semi truck



When it comes to semi truck horsepower, figures can vary depending on the engine, ruck size, and brand. However, semi trucks typically stay within the 400 to 600 hp range, making them exceedingly powerful machines. The higher the horsepower, the more worthwhile it is to consider factors like aerodynamics, weight, and fuel economy. Read on to learn more about the powerful engines found under the hoods of our used trucks for sale.

Facts About Semi Truck Engines

Semi truck engines are completely different beasts than the engines found in regular cars, trucks, and SUVs. They’re larger, more powerful, and demand much more oil than your average engine. Here are a few interesting facts about semi truck engines vs. car engines:

  • Semi truck engines are about six times larger than those found inside passenger cars.
  • On average, semi truck horsepower ranges from 400 to 600 hp, while average lb-ft of torque ranges from 1,000 to 2,000.
  • Unlike passenger car engines, semi truck engines should only be stopped to change the oil, perform engine services, or due to anti-idle laws.
  • Semi truck engines have 12+ gears, as opposed to the 4 to 5 found in passenger cars.
  • The engines inside semi trucks can hold about 15+ gallons of oil compared to the 4 to 6 quarts held by passenger car engines.

What Are Some of the Best Semi Truck Engines?

Each of the top truck manufacturers in the USA has an engine or range of engines that help set them apart. How powerful are the engines produced by International, Kenworth, Peterbilt, and other top brands? Find out below:

  • Navistar: Navistar offers a variety of powerful engines for Class 5 and Class 6 trucks for lighter duty applications, as well as a capable Cummins for Class 8 trucks. The Cummins ISX, one of the most popular heavy-duty engines, produces 400 to 600 hp and up to 2,050 lb-ft of torque.
  • PACCAR: PACCAR engines are available in Kenworth and Peterbilt trucks and include fuel-conscious diesel options with impressive torque ratings. They produce up to 500 hp and 1,850 lb-ft of torque.
  • Volvo: Volvo offers 13L and 16L engines with horsepower and torque ratings of about 600 and 2,050, respectively. The 13L engine is the most popular option and found inside many of their trucks.
  • Freightliner: Freightliner has 13L, 15L, and 16L engines, which are based on a Mercedes-Benz design for European models. Freightliner engines produce up to 600 hp and 2,050 lb-ft of torque.

Learn More from the Experts at International Used Truck Centers!

Does your semi truck have a diesel engine? Learn how to keep it running at its best with quality diesel exhaust fluid! If you have any additional questions about semi truck horsepower, contact us at International Used Truck Centers. You can also visit us in person at any of our locations throughout the country!

Have A Question?

International Used Truck Centers

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Phone: 888-381-7438

http://maps.google.com/?q=1864%20Highgrove%20Lane%2C%20Naperville%2C%20IL%2060540
41.776180 -88.200918
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International Used Truck Centers
International Used Truck Centers
, , US
888-381-7438
https://di-uploads-development.dealerinspire.com/internationalusedtruckcenters/uploads/2018/12/NavistarIUTCOGImage.png
International Used Truck Centers 41.776180, -88.200918.