Cummins - Better. Where it Counts.

You can depend on Cummins to deliver leading diesel and natural gas engine technology. In fact, Cummins is the only engine manufacturer that designs, develops and supports a totally integrated package from the air handling to the exhaust aftertreatment.  This allows us to optimize performance to a degree that no other engine manufacturer can match.

All Cummins diesel engines in North America are equipped with the Cummins Aftertreatment System.  This proprietary package combines a Diesel Particulate Filter (DPF) with Selective Catalytic Reduction (SCR) technology to remove over 90% of particulate matter.

We want you to be as comfortable and confident with Cummins world-class technology as we are. We’ve collected the most frequently asked questions about our Heavy-Duty and MidRange diesel and natural gas products, the Cummins Aftertreatment System, Diesel Exhaust Fluid and environmental and regulatory issues, and you can access them via the On-Highway FAQ page

For more information, please see the rest of our On-Highway Technology section, and our brochures.

Cummins reliability and performance is also available in a natural gas option. For detailed information on Cummins natural gas engines, visit the Cummins Westport website.

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