Cummins Every Time - Construction - Tier 3/Stage IIIA

The new Tier 3 and Stage IIIA compliant Cummins QSL engines take you to a whole new level of power, versatility and emissions control. They achieve Tier 3 and Stage IIIA compliance with in-cylinder technology that maintains a compact, simple and cost-effective solution.

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 a multitude of tough industrial applications worldwide. With ratings from 250-365 hp (186-272 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.

The advanced design of the QSL ensures that maintenance is kept to an absolute minimum.

QSL engines currently meet Tier 3and Stage IIIA emissions standards with an in-cylinder solution that doesn't require complex add-ons. The advanced QSL engine platform will be carried forward with the addition of aftertreatment to meet Tier 4/Stage IV emissions through 2011 and beyond.

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.

Cummins has so much confidence in the reliability of our Stage IIIA engines - and the rapid response capability of our service network - we offer an Uptime Guarantee on equipment purchased, registered and operated in EU countries from May 1, 2007 through April 30, 2008. If your engine is out of service and it can't be repaired within 48 hours from fault diagnosis, you will receive a parts and service credit equivalent to 500 Euros on the future purchase of Cummins parts or service. See the European Stage IIIA Uptime Guarantee for registration requirements and terms.

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 QSL brochure, click here.

Engine Model	Advertised hp (kW) @ rpm	Peak hp (kW) @ rpm	Peak Torque lb-ft (N•m) @ rpm
QSL 365*	365 (272) @ 2100	375 (280) @ 2000	1113 (1509) @ 1500
QSL 350*	350 (261) @ 2100	370 (276) @ 1900	1120 (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 325	325 (242) @ 2100	350 (261) @ 1900	1050 (1424) @ 1500
QSL 325	325 (242) @ 1800	325 (242) @ 1800	1050 (1424) @ 1400
QSL 305	305 (227) @ 2000	340 (254) @ 1800	1110 (1505) @ 1400
QSL 300	300 (224) @ 2100	325 (242) @ 1900	1010 (1369) @ 1500
QSL 300	300 (224) @ 2000	300 (224) @ 2000	1010 (1369) @ 1500
QSL 300**	300 (224) @ 1800	300 (224) @ 1800	1000 (1356) @ 1400
QSL 280	280 (209) @ 2100	307 (229) @ 1800	1050 (1424) @ 1500
QSL 280**	280 (209) @ 1800	280 (209) @ 1800	950 (1288) @ 1400
QSL 280	280 (209) @ 2000	300 (224) @ 1800	1000 (1356) @ 1500
QSL 250	250 (186) @ 2000	250 (186) @ 2000	800 (1085) @ 1400

All ratings are intermittent unless otherwise noted. Additional ratings may be available. Check with your Cummins distributor or dealer.

^*Indicates restricted rating.

^**Indicates continuous rating.

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 Type	In-Line, 6-Cylinder
Displacement	543 cu in	8.9 L*
Advertised Horsepower	250-365 hp	186-272 kW

Peak Torque	900-1120 lb-ft	1220-1518 N•m
Bore and Stroke	4.49 in x 5.69 in	114 mm x 144.5 mm
Aspiration	Turbocharged and Charge Air Cooled
Oil System Capacity	24 U.S. qt	22.7 L*
Coolant Capacity	11.6 U.S. qt	11.0 L*
Length	44.4 in	1128 mm
Width	27.7 in	704 mm
Height	45.9 in	1166 mm
Weight (wet)	1,627 lb	738 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.
Two-Stage Dual Fuel Filtration - Provides a balanced level of particle separation to maximize fuel filter life and protect vital fuel system components.
Auto-Tensioning Belt Drive - Self-adjusting for optimum tension, which increases fan, alternator and fan belt life.
Heavy-Duty Roller Followers - Cam roller followers give the QSL superior durability and cam life.

12- or 24-volt electrical capacity.
Front-mount accessory drive option available for hydraulic pumps or air compressors.
Rear Engine Power Take-Off (REPTO) available for hydraulic pumps or air compressors.

Maintenance Intervals.

Minimum maintenance has been designed into every QSL. A 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 construction 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 temperature 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, allowing the OEM to focus on machine requirements instead of engine requirements. Cummins Advisor models 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.