PRODUCT Detail
The QSX not only meets Tier 3 and Stage IIIA emissions standards, it is the base platform to reach Tier 4 requirements as well. It uses in-cylinder technology, a simple and cost-effective solution that maintains the proven performance, dependability and durability of the QSX while operating cleanly and efficiently.
The QSX combines an advanced dual overhead cam design with proven heavy-duty components for dependability without compromise, every hour of every workday. Its unique dual overhead cam design allows the engineers at Cummins to optimize combustion efficiency, add to that our patented wastegated turbo with excellent response and powerful torque rise, and you have an engine capable of delivering optimum performance at every rpm.
Available in a range of ratings from 375-665 hp (280-496 kW), the QSX offers an impressive range of standard features. And options like REPTO (Rear Engine Power Take-Off) add functionality.
To maximize your uptime, maintenance requirements have been consolidated and service intervals extended.
To ensure that every QSX is perfectly matched to every piece of equipment, Cummins PowerMatch and Advisor are ready to provide expert assistance with your spec’ing and installation process.
Every QSX engine is covered by Cummins three-step warranty, one of the most comprehensive and simplest plans in the industry.
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 turbo with excellent response and powerful torque rise, 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 And everything that makes this a great engine for original equipment also makes it a great engine for repowers. Every time.
Engine Type | In-Line, 6-Cylinder | |
Displacement | 915 cu in | 15 L* |
Advertised Horsepower | 375-630 hp | 280-470 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 |
Weight (dry) | 3,200 lb | 1,451 kg |
* L = Liters/Litres
Cummins QSX has these standard features:
- Dual Overhead Cams – The first drives the high-pressure fuel system and the second operates the intake and exhaust valves.
- Patented Wastegated Turbo – Maximizes performance at every rpm.
- High-Pressure Fuel System – Up to 30,000 psi for cleaner, more complete combustion.
- Quantum System Electronic Controls – Optimize engine performance. The intelligence of the system even allows you to use a variety of fuel such as kerosene when diesel fuel isn’t available.
- Heavy-Duty Rings, Pistons, Bearings – Built to last in excess of 21,000 hours (35% load factor) with high-strength alloys.
- Engine Protection System – Early detection system minimizes potential damage and reduces downtime.
- Fleetguard® ES Oil and Fuel Filters – Allow 500-hour service intervals.
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