Cummins QSX15 Engines For Sale

Shop the Cummins QSX15 engine for sale at HD Engines. The Cummins QSX15 is a 15.0-liter heavy-duty industrial diesel engine designed for high-horsepower off-highway and equipment applications, producing up to 600 HP. Built on Cummins' proven 15-liter platform, it is engineered to deliver strong performance while meeting modern emissions requirements, including Tier 3 and Tier 4 Final compliance. Every QSX15 we stock is run-tested and listed with its year, horsepower, CPL, and emissions tier so you can match the right engine to your equipment.

Available in ratings up to 600 HP at 2100 RPM, the QSX15 lineup includes configurations with integrated electronic controls and advanced aftertreatment systems. Designed for demanding construction, mining, and industrial environments, Cummins QSX15 engines provide reliable power for both replacement and OEM equipment applications.

Below is a brief overview of the Cummins QSX15 engine and what makes it a trusted industrial power source:

Power and Performance: The QSX15 produces up to 600 horsepower from its 15.0-liter displacement, delivering the high torque needed for heavy off-highway and industrial work.

Electronic Controls: QSX15 engines use Cummins electronic controls, including the CM570 and CM2350 modules depending on the year, for precise fuel delivery, diagnostics, and reliable operation.

Applications: The QSX15 powers mining equipment, construction machinery, cranes, generators, pumps, and other high-horsepower industrial and off-highway equipment.

Emissions: QSX15 engines are available in Tier 3 and Tier 4 Final configurations, with modern aftertreatment on later units. We list the emissions tier on every engine so you can match your equipment correctly.

Durability: Built on the same rugged 15-liter platform trusted across Cummins' heavy-duty lineup, the QSX15 is known for its durability and long service life in demanding conditions.

Why Buy a Cummins QSX15 From HD Engines?

Equipment owners, dealers, and repair shops choose the QSX15 for its high-horsepower output, proven durability, and the wide Cummins parts network. At HD Engines, every QSX15 is run-tested and inspected before it ships, and listed with its serial number, CPL, horsepower, and emissions tier. With 25-plus years in the diesel engine business and nationwide freight, buying a QSX15 is straightforward and low-risk.

Buying a documented QSX15 also costs far less than replacing the whole machine, and a run-tested or new unit gives you a clean starting point instead of an unknown engine. That is why mining and construction operators rely on HD Engines for their high-horsepower Cummins replacements.

Cummins QSX15 Engines We Carry:

Our inventory includes run-tested and new QSX15 engines rated from 525 to 600 HP, in Tier 3 and Tier 4 Final configurations with CM570 and CM2350 controls. Pricing generally ranges from about $25,000 for used industrial engines up to about $45,000 for new Tier 4 Final units. Contact us today and we will match your QSX15 by CPL or serial number. Call (786) 377-5210 or email info@hdengines.com.

Overall, the Cummins QSX15 has a strong reputation for high-horsepower power, durability, and reliability, making it a trusted choice for mining, construction, and industrial applications.