Diesel Engines | Cummins Inc.

Experience power and reliability

Paired with innovative aftertreatment systems and cutting-edge engineering, diesel engines can operate with net zero emissions and supplement operations with biodiesel blends. Diesel allows you to go farther with less while delivering better acceleration, towing, and hauling potential when compared to gasoline counterparts. Our diesel engines offer solutions for a wide variety in the medium-duty and heavy-duty truck markets.

Explore our current products

Meet our present lineup – each engine designed to give you the capabilities to get the job done.

X15 Efficiency Series

Power: 400 – 500 hp | Torque: 1450 – 1850 lb – ft

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X15 Productivity Series

Power: 430 – 605 hp | Torque: 1650 – 2050 lb – ft

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X15 Performance Series

Power: 525 – 565 hp | Torque: 1650 – 2050 lb – ft

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X12

Power: 350 – 525 hp | Torque: 1250 – 1700 lb – ft

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L9

Power: 260 – 380 hp | Torque: 860 – 1250 lb – ft

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B6.7

Power: 200 – 325 hp | Torque: 570 – 750 lb – ft

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Get a glimpse of the future

The Next Generation X15

The Next Generation X15 is the next step in the Cummins fuel-agnostic 15-liter platform. Offering up to 605 hp and 2,050 lb-ft torque, this engine demonstrates our continued commitment to the evolution of internal combustion technology.

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X10

Introducing the new Cummins X10, a next generation engine that bridges the gap between medium-duty and heavy-duty applications. This engine is uniquely positioned to provide efficiency and dependability

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