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.

Available in a range of ratings from 350-635 hp (261-474 kW), the QSX not only meets Tier 2 and Euro Stage II emissions standards, it’s advanced design can reach Tier 3 and Stage III requirements as well, with minimal changes. Maintenance has been consolidated so your QSX has less downtime, with extended service intervals. Cummins Advisor makes specifying the right standard features and operating parameters easy every time. And options like REPTO (Rear Engine Power Take-Off) add functionality.

Every QSX engine is covered by Cummins three-step warranty, one of the most comprehensive and simplest plans in the industry.