In demanding oil and gas applications, dependability is everything. That’s where the superior uptime and productivity of the QST30 makes the difference. Dependability makes the QST30 the right engine choice. Every time. Its V-12 configuration offers up to 1500 hp (1117 kW) to easily handle high load factors.

The Cummins QSX combines an advanced dual overhead cam design with proven Cummins heavy-duty components. The result is dependable performance without compromise, every hour of every day. The dual overhead cam design allows the engineers at Cummins to optimize combustion efficiency and the integrated engine brake (Intebrake™) at the same time, using advanced “in-cylinder” technology. And the advanced design not only meets Tier 3 emissions standards, it is the base platform to reach Tier 4 requirements as well. Performance

From ambulances to wildland firefighting equipment, the B6.7 is designed in Indiana and built in North Carolina specifically for the fire service, with maximum performance and reliability. Designed For The Fire Service.

The Tier 3/Stage IIIA QSX15 engine is one of the Quantum Series of rail engines from Cummins with innovative technology that delivers more for less.   The QSX15 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.

The QSX is designed to deliver dependable performance without compromise, every hour of every workday. With a unique dual overhead cam design that allows the engineers at Cummins to optimize combustion efficiency.

The QSX is designed to deliver dependable, hardworking performance without compromise, every acre and every day. A unique dual overhead cam design optimizes combustion efficiency and pulling power of your 4WD tractor or scraper tractor, so you can easily handle the biggest rippers and tillage tools.

The QSX is designed to deliver dependable, hardworking performance without compromise, every day. A unique dual overhead cam design optimizes combustion efficiency and pulling power.

The QSX not only meets Tier 3 and Stage IIIA emissions standards, it is the base platform to reach Tier 4 requirements as well. It uses in-cylinder technology, a simple and cost-effective solution that maintains the proven performance, dependability and durability of the QSX while operating cleanly and efficiently.

To meet Tier 3 and Stage IIIA emissions standards the QSX uses in-cylinder technology, a simple and cost-effective solution that maintains the proven performance, dependability and durability of the QSX while operating cleanly and efficiently.

The QSX11.9 is a clean-sheet design that incorporates Cummins proven technology enablers to meet EPA Tier 4 Interim and EU Stage IIIB low emissions standard in 2011. The QSX11.9 will achieve up to 5 percent better fuel efficiency*, lowering your cost of operation and improving your bottom line. Ratings range from 300-500 hp (224-372 kW).