QSX for Industrial Applications

Overview

QSX for Industrial Applications

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

The high-pressure injection system and electronic controls of the QSX ensure clean, powerful and efficient operation every time. Fuel is injected at pressures of up to 30,000 psi, for cleaner, more complete combustion. The intelligence of the electronic control system allows you to use a variety of fuel – even kerosene when diesel fuel isn’t available.

Add to that our patented wastegated turbocharger and you have an engine capable of delivering optimum performance at every rpm. The wastegated turbo maximizes output without overboost at high speed and improves airflow at lower speeds for improved responsiveness.

Versatility

No matter what type of job you have to do – from agriculture to mining to construction to a wide range of industrial applications – the QSX is designed to work as an integral part of your equipment. Our Electronic Control Module (ECM) has the built-in capacity and connections to take input from all your other vehicle systems and adjust engine performance to match. And everything that makes this a great engine for original equipment also makes it a great engine for repowers.

Specifications

Engine Type In-Line, 6-Cylinder
Displacement 915 cu in (15 L*)
Advertised Horsepower 375-665 hp (28-496 kW)
Peak Torque 1346-1875 Lb-fT 1825-2542 n•m
Bore and Stroke 5.39 in x 6.65 in (137 mm x 169 mm)
Aspiration Turbocharged and Charge Air Cooled
Oil System Capacity 48 U.S. Qt (45.42 L*)
Coolant Capacity 20 U.S. Qt (18.9 L*)
Length 56.8 in (1443 mm)
Width 40.6 in (1032 mm)
Height 51.1 in (1298 mm)
Dry Weight 3,200 Lb (1,451 kg)

*L = Liters/Litres

Engine Finder Specifications

Markets
Certification Level Tier 3 / Stage IIIA
Power 375 - 665 hp / 280 - 496 kW
Torque 1346 - 1875 lb-ft / 1825 - 2542 N•m

Ratings

Engine Model Advertised HP (kW) @ RPM Peak HP (kW) @ RPM Peak Torque LB-FT (Nm) @ RPM
QSX 665* 665 (496) @ 2100 665 (496) @ 1900 1875 (2542) @ 1400
QSX 630* 630 (470) @ 2100 630 (470) @ 1900   1875 (2542) @ 1400 
QSX 600   600 (447) @ 2100   610 (455) @ 1900  

1875 (2542) @ 1400

QSX 600*   600 (447) @ 1800   600 (447) @ 1800  

1875 (2542) @ 1400

QSX 560   560 (418) @ 1800   560 (418) @ 1800   1875 (2542) @ 1400 
QSX 560*  560 (418) @ 1800   560 (418) @ 1800   1744 (2365) @ 1400 
QSX 535   535 (399) @ 2100   589 (439) @ 1800 1873 (2540) @ 1400 
QSX 535   535 (399) @ 2100   572 (427) @ 1800   1806 (2449) @ 1400 
QSX 520   520 (388) @ 2100   555 (414) @ 1800   1744 (2365) @ 1400 
QSX 510**   510 (380) @ 1800   510 (380) @ 1800  

1744 (2365) @ 1400

QSX 500   500 (373) @ 2100   550 (410) @ 1800  

1744 (2365) @ 1400

QSX 500   500 (373) @ 2000   533 (397) @ 1800   1744 (2365) @ 1400 
QSX 500**   500 (373) @ 1800   500 (373) @ 1800   1744 (2365) @ 1400 
QSX 485   485 (362) @ 2100   519 (387) @ 1800  

1639 (2222) @ 1400

QSX 450   450 (336) @ 2100   480 (358) @ 1800   1550 (2102) @ 1400
QSX 450   450 (336) @ 2000   480 (358) @ 1800   1550 (2102) @ 1400 
QSX 450**   450 (336) @ 1800   450 (336) @ 1800  

1550 (2102) @ 1400

QSX 435   435 (324) @ 2100   465 (347) @ 1800   1489 (1994) @ 1400 
QSX 410   410 (306) @ 2000   410 (306) @ 2000  

1346 (1825) @ 1400

QSX 400   400 (298) @ 2100   440 (328) @ 1800   1452 (1969) @ 1400 
QSX 390   390 (291) @ 2000   390 (291) @ 2000   1346 (1825) @ 1400 
QSX 375**   375 (280) @ 1800   375 (280) @ 1800   1346 (1825) @ 1400 

 *Indicates a restricted rating.

**Indicates a continuous rating.

All ratings are intermittent unless otherwise noted.

Additional ratings may be available. Check with your Cummins distributor or dealer.

Brochures Available

Title Bulletin Number Request View  
Cummins Power For Well Servicing Brochure 4087355 View  Download
Encompass Tri-Fold Mailer 3624570 Request View  Download
QSX Tier 3 for Industrial Applications Spec Sheet 4087066 Request View  Download
QSX Tier 3 for Industrial Applications Spec Sheet - French 4087082 Request View  Download