Cummins truck engines are made to ensure you get the most out of your vehicle. See why we're the world's leading independent engine manufacturer.

Cummins diesel engines, natural gas engines, and alternative fuel engines deliver reliable power with the torque and efficiency you need.

These Cummins heavy-duty diesel engines are available among a variety of *truck manufacturers. Find a dealer or visit the truck OEM website to learn about specific engine availability within the truck models listed below.

The new 2025 Cummins 6.7-liter Turbo Diesel advanced engine system and powertrain will be offered in the recently announced 2025 Ram 2500, 3500 Heavy Duty pickups and Ram 3500, 4500 and 5500 Chassis Cab trucks.

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.

The X10 combines versatility and power to handle a variety of vocational applications, such as cement mixers, refuse and dump trucks. This new heavy-duty engine draws on years of experience from the L9 and X12, it upholds Cummins’ legacy of …

Look up genuine Cummins parts lists for your Cummins equipment or Original Equipment (OE or OEM) by entering your Cummins Engine Serial Number (ESN), ATSN, GSN, Part Number or description.

Cummins heavy-duty diesel engines are available among a variety of truck manufacturers. Find a list of manufacturers and specific truck models that offer our engines, as well as links to OEM websites to learn more.

In 2019, we celebrated a 30-year partnership with RAM truck that started with the Cummins 5.9L Turbo Diesel in model year 1989. The 2021 6.7L Cummins Turbo Diesel brings to the table even more horsepower and torque while maintaining the diesel’s historic durability and efficiency.

Cummins Genuine Parts are built to exact specifications for our products, and made using materials and procedures that match our dependable products. This is why our parts are better than non-genuine parts. Browse our parts catalog, find your Engine Serial Number, and learn more about why Genuine Parts are the best for your Cummins products.