Cummins Diesel Engine for QSX15 series Cummins QSX is development of a new engine for the 21st century, with dual overhead camshaft design, can produce greater traction and braking force. The patented turbo system variable output, can output more power at higher engine speeds at lower speed increases the engine's intake air, improve the response characteristics of the system. The use of advanced in-cylinder combustion technology, the QSX engine is not only in line with European non-highway mobile equipment Phase III emission standard (Tier 3), and has for the fourth stage of emission (Tier 4) technology platform. QSX engine widely used in a variety of applications in the field of construction machinery, agriculture, mining and airport ground support equipment (such as aircraft tractor) and the like. Model: QSX15 displacement: 15 l Number of cylinders: 6-cylinder power range: 375-600 horsepower control: all-electric emissions: in line with European non-highway mobile equipment Phase III emission standard (Tier 3) Engine Model Rated Power hp @ The maximum number of revolutions torque Newton - meters @ revolutions 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