Cummins next generation QSL9 meets the stringent EPA Tier 4 Interim and EU Stage IIIB emissions standard with improved performance and wide-ranging power solution extending from 240-400 hp (179-298 kW).  The QSL9 will achieve up to 5 percent better fuel efficiency*, lowering your cost of operation and improving your bottom line.

Wellhead compression applications require reliability and durability not found in every natural gas engine. For dependable low emission operations and world class support, you need Cummins QSL9G – an emissions compliant, high-performance natural gas engine that shares the proven heritage of the Cummins C Series diesel engines and many of the same heavy-duty components. You can depend on the QSL9G to stay emissions compliant, keep maintenance costs down and the gas flowing. Every day.

Your business depends on having the power to meet every challenge. The QSM with Quantum System electronic controls provides highly productive power for equipment on the world’s most demanding work sites. And the QSM is the first engine to be certified to EPA Tier 3 and Euro Stage IIIA levels. Cummins knows combustion and delivers a cost-effective solution utilizing our advanced “in-cylinder” technology.

The Tier 3/Stage IIIA QSM11 engine is one of the Quantum Series of rail engines from Cummins with innovative technology that delivers more for less. The QSM11 has more power, more torque and higher durability – all while achieving lower fuel consumption, lower emissions and less servicing. Using the Cummins PowerMatch tool set, it is possible to custom-tailor the engine torque curves and calibration features to the specific operation of the equipment. This means higher productivity and fuel efficiency benefits for the rail operator.

Every day, QSM engines are put to the test in construction equipment worldwide with superior performance. Maintenance is kept to an absolute minimum, with oil change intervals that are double the previous standards in some applications, sealed sensors and an auto-tensioning belt drive.