Cummins Inc. says its 2007 clean and fuel-efficient on-highway engines are available in Class 8 tractors, which meet requirements for the U.S. Environmental Protection Agency’s SmartWay-designated highway tractors, part of the EPA’s SmartWay Transport Partnership.
Cummins says its ComfortGuard auxiliary power unit also assists carriers in meeting SmartWay membership requirements and can be specified in a SmartWay Class 8 tractor. Engines include the ISX, ISM and ISL units.
The engines are certified and compliant to the 2007 EPA requirements. Cummins engines can be purchased in SmartWay-eligible Class 8 tractors from International, Volvo, Kenworth and Peterbilt.
For more information, including gearing recommendations and electronic setting guides, go to Cummins’ Power Spec website.




![Volvo Vnl Sleeper Review[20]](https://img.ccjdigital.com/mindful/rr/workspaces/default/uploads/2025/11/volvo-vnl-sleeper-review20.lrVppY9UDR.jpg?auto=format%2Ccompress&fit=crop&h=167&q=70&w=250)

