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Cummins QSX series electronically injection diesel engine

2023-12-08

QSX is a new engine developed by Cummins for the 21 st century. It is designed with double overhead camshafts, which can generate greater traction and braking force.

The patented variable output turbocharging system can output more power when the engine speed is higher, increase the air intake of the engine when the speed is lower, and improve the response characteristics of the system.


Using advanced in-cylinder combustion technology, the QSX engine not only meets the third-stage emission standard ( Tier 3 ) of European and American off-road mobile equipment, but also has a technical platform for the fourth-stage emission ( Tier 4 ). The QSX engine is widely used in various application fields such as engineering machinery, agriculture, mining and airport ground equipment ( such as aircraft tractors ).


Model : QSX15, displacement : 15 liters, number of cylinders : 6 cylinders, power range : 375-600 horsepower, control mode : full electronic control, emission : meet the third stage emission standard ( Tier 3 ) for off-highway motor equipment in Europe and the United States.

Engine model
Rated Power @RPM
max torque N-m@ RPM
QSX15-600 ***
600 @ 2100
2780 @ 1400
QSX15-600
600 @ 1800
2780 @ 1400
QSX15-440
440 @ 2000
2237 @ 1300
QSX15-425***
425 @ 2100
1949 @ 1400
QSX15-425***
425 @ 2100
1948 @ 1400
QSX15-375
375 @ 2100
1871 @ 1400
QSX15-360***
360 @ 2100
1648 @ 1400

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