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The QSL uses Cummins advanced in-cylinder technology to meet Tier 3 and Stage IIIA emissions standards. This is a simple and cost-effective solution that maintains the proven performance, dependability and durability of the QSL while operating cleanly and efficiently.

There is no substitute for power when your equipment needs it. Every hour of every day, Cummins QSL engines deliver performance that meets the challenge of tough agricultural applications worldwide. With ratings from 280-365 hp (209-272 kW) and a torque rise of up to 50%, QSL engines combine advanced in-cylinder combustion technology and a High Pressure Common Rail (HPCR) fuel system that increases power and reduces emissions. At the same time, the QSL delivers better cold starting and runs 50% quieter for increased operator comfort. Every day.

In addition to providing exceptional reliability and durability, the advanced design of the QSL ensures that maintenance is kept to an absolute minimum.

To ensure that every QSL 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.

The QSL comes with virtually every feature standard. Options include REPTO (Rear Engine Power Take-Off) and a 12- or 24-volt electrical capacity.

Every QSL engine is covered by Cummins three-step warranty, one of the most comprehensive and simplest plans in the industry.

To view and print a PDF file of our Tier 3 and Stage IIIA QSL brochure, click here.

 
Engine ModelAdvertised hp (kW) @ rpmPeak hp (kW) @ rpmPeak Torque lb-ft (N•m) @ rpm
QSL 365*365 (272) @ 2100375 (280) @ 20001113 (1509) @ 1500
QSL 350*350 (261) @ 2100370 (276) @ 19001120 (1519) @ 1500
QSL 340* 340 (254) @ 2300 347 (259) @ 2000 1095 (1483) @ 1500 
QSL 330* 330 (246) @ 2100 350 (261) @ 1900 1050 (1424) @ 1400 
QSL 325325 (242) @ 2100350 (261) @ 19001050 (1424) @ 1500
QSL 325325 (242) @ 1800 325 (242) @ 1800 1050 (1424) @ 1400 
QSL 305305 (227) @ 2000340 (254) @ 18001110 (1505) @ 1400
QSL 300300 (224) @ 2100325 (242) @ 19001010 (1369) @ 1500
QSL 300300 (224) @ 2000300 (224) @ 20001010 (1369) @ 1500
QSL 300**300 (224) @ 1800300 (224) @ 18001000 (1356) @ 1400
QSL 280280 (209) @ 2100307 (229) @ 18001050 (1424) @ 1500
QSL 280**280 (209) @ 1800280 (209) @ 1800950 (1288) @ 1400
QSL 280280 (209) @ 2000300 (224) @ 18001000 (1356) @ 1500

All ratings are intermittent unless otherwise noted. Additional ratings may be available.

Check with your Cummins distributor.
*Indicates a restricted rating.
**Indicates a continuous rating.

The in-cylinder combustion technology, high-pressure injection system and electronic controls of the QSL not only ensures clean operation that meets Tier 3 emissions standards, but also ensures powerful and efficient operation every time. Cummins QSL engines are built to deliver heavy-duty performance in every piece of machinery. Full-authority electronic engine controls combine with the High Pressure Common Rail (HPCR) fuel system for strong performance at every rpm. Its free-breathing 24-valve design and centered injectors give the QSL one of the highest power-to-weight ratios in its class. Plus, the QSL is capable of running on high-sulfur fuels, so it's at home in every corner of the globe.

Its ECM (Electronic Control Module) is totally programmable, so you can specify performance parameters to match a wide range of operating conditions and load factors. For every job.
Specifications.
Engine TypeIn-Line, 6-Cylinder
Displacement543 cu in8.9 L*
Advertised Horsepower280-365 hp209-272 kW
Peak Torque900-1120 lb-ft1220-1518 N•m
Bore and Stroke4.49 in x 5.69 in114 mm x 144.5 mm
AspirationTurbocharged and Charge Air Cooled
Oil System Capacity24 U.S. qt22.7 L*
Coolant Capacity11.6 U.S. qt11.0 L*
Length44.4 in1128 mm
Width27.7 in704 mm
Height45.9 in1166 mm
Wet Weight1,627 lb738 kg

*L=Liters/Litres

 

Standard features on the QSL include:
  • Full-Authority Electronic Controls - Provide seamless integration with other components to optimize engine operation
  • Stiffer Block and Head - For reduced noise and vibration. Fluid circuits are integrated, replacing hoses and eliminating potential leaks
  • High Pressure Common Rail Fuel System - Allows multiple injection events for cleaner, quieter operation with consistent performance at every rpm. Also improves cold-weather starting
  • Wastegated Turbocharger - Delivers maximum power and torque
  • Mid-Stop Cylinder Liners - Reduce cavitation and improve rebuildability
  • Gear Housing Design and Front-End Support - The gear housing and accessories mount directly to the block for improved durability
  • Improved Piston Design - Symmetrical piston bowl combines with centered injectors to deliver optimal combustion
  • Heavy-Duty Lube System - Targeted piston cooling and increased lube flow to the power cylinder result in increased piston reliability and durability. Improved lube and bypass filtration system increase ring and bearing life by as much as 63%
  • Improved Crankcase Ventilation - Virtually eliminates oil carryover
  • Valve Cover and Gasket - Isolated design with perimeter bolting for better sealing and improved reliability

The QSL has many options, including:
  • 12- or 24-volt electrical capacity
  • Front-mount accessory drive option available for hydraulic pumps or air compressors
  • Rear Engine Power Take-Off (REPTO) provides additional capacity for driving remote-mounted devices
Maintenance Intervals.

Features have been designed into every QSL engine that minimize downtime for maintenance. The two-stage dual fuel filter provides a balanced level of particle separation to maximize fuel filter life and protect the vital fuel system components. An integrated water pump, lube pump and cooler housings and coolant bypass eliminate possible leak points. QSL engines are designed to run up to 500 hours between scheduled fuel and oil filter changes.

 
For complete maintenance information, please consult your Owner's Manual or Operations and Maintenance Manual.

The base warranty includes full coverage on every QSL engine and branded components, including electrics such as starters and alternators for unlimited hours during the first year of operation, extending through 2 years or 2,000 hours (whichever comes first). The base warranty also includes 3-year/10,000-hour standard protection on major components. 

Three simple steps explain everything you need to know:

Step One: Full coverage on all Cummins industrial engines and branded components with unlimited hours during the first year of operation. This includes Cummins branded electrics such as alternators, starters, etc.

Step Two: Full coverage is extended for the second year, up to 2,000 hours of operation. Total hours are cumulative from the time the engine goes in service.

Step Three: Major components coverage including block, crankshaft, camshaft and rods on all products for the third year or up to 10,000 hours of operation.

Extended coverage is available with our Encompass Protection Plans with the flexibility to meet the needs of your agriculture operation.  Cummins Encompass has you covered, around the clock and around the globe. 

For complete warranty details, please see the US and Canadian warranty brochure (3381321) or International warranty brochure (3381322)

Getting every installation right - the first time - is as important to Cummins as it is to you. PowerMatch and Advisor help ensure that we get it right, every time.

PowerMatch.

Cummins PowerMatch helps OEMs optimize engine performance so you can lower fuel consumption, increase operator satisfaction, improve equipment life and protect the customer's investment. PowerMatch tailors engine performance to specific equipment models and applications. Advanced electronics are used to enhance power curves and trim ratings, matching the job the equipment will be doing while taking into account variables such as work environment, load factors, ambient temperatures and altitude. PowerMatch can also be used to create a unique torque curve, set up alternate governor settings or set up engine protection features.

Advisor.

Advisor puts a virtual engineer on the OEM team to shorten engineering cycle times and reduce costs. Cummins Advisor model equipment installation for exceptional productivity, reliability and durability. After a comprehensive review of load factors, climates, duty cycle and equipment usage, Cummins Advisor recommends the best engine and rating match for the equipment and operating conditions. It then builds a virtual model of the intake, exhaust, cooling, fuel and mounting systems. When Advisor identifies an issue, it lists acceptable alternatives. This approach allows changes while the equipment design is still "on paper," ensuring optimum performance while minimizing costs. Every time.

 



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