Cummins Class 8 Heavy-Duty Truck Engines 


Heavy-duty truck owners and operators know Cummins produces the industry’s most reliable engines for class 8 vehicles. Cummins owners benefit from our ongoing investment in research and development, including product testing in more than 230 test cells worldwide and millions of miles of real world, on-highway use

Cummins heavy-duty truck engines include: 


Offered as an option by every major truck manufacturer in the business, the ISX15 is North America’s most popular heavy-duty engine. The ISX15 delivers 400-600 horsepower with up to 2,050 pound-feet of torque. Cummins manufactures every component of this turbo diesel to optimize performance, reliability and durability



Leveraging proven technology from the ISX15 combined with a high power-to-weight ratio and more than 800 pound-feet of clutch engagement torque, the ISX12 embodies strength and reliability. With near-zero emissions and reduced noise output, it’s making a huge impact in work trucks of all types

These Cummins heavy-duty truck engines are available with SmartAdvantageTM powertrain, matching the power of Cummins diesel with Eaton’s Fuller Advantage 10-speed automatic transmissions for enhanced performance, smooth, error-free shifting and 3-6% better fuel efficiency. Your Cummins can be spec'd to meet the needs of any driving condition or duty cycle.

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