Cummins Every Time

Everyone who's ever worked on construction equipment knows, there is no substitute for power. That's why Cummins QSL comes with a torque rise of up to 50% and a peak torque of 1150 lb-ft. It handles the toughest loads and the roughest work conditions. At the same time, the QSL delivers better fuel economy, has better cold starting capability and is up to 50% quieter in operation.

Plus, the heavy-duty design of the QSL engine block and components add reliability and durability you can count on every day, year after year.

Ratings range from 250-350 hp (186-261 kW), with high-pressure fuel injection for strong performance at every rpm. A low-maintenance filter assembly is just one of many standard features that minimize downtime for maintenance. Among the many options that let you customize your QSL are Rear Engine Power Take Off (REPTO) and accessory drives.

Getting the right combination to match your equipment, operating environment and workloads has never been easier. Cummins PowerMatch and Advisor are ready to provide expert assistance with your specing and installation.

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

Engine Model	Advertised hp (kW) @ rpm	Peak hp (kW) @ rpm	Peak Torque lb-ft (N•m) @ rpm
QSL 350*	350 (261) @ 2100	370 (276) @ 1900	1130 (1532) @ 1400
QSL 342	342 (255) @ 1800	342 (255) @ 1800	1130 (1532) @ 1400
QSL 330	330 (246) @ 2100	350 (261) @ 1900	1130 (1532) @ 1400
QSL 330	330 (246) @ 1800	330 (246) @ 1800	1075 (1458) @ 1400
QSL 325	325 (242) @ 2000	340 (254) @ 1800	1130 (1532) @ 1400
QSL 300	300 (224) @ 2100	325 (242) @ 1900	1075 (1458) @ 1400
QSL 300**	300 (224) @ 1800	300 (224) @ 1800	1000 (1356) @ 1400
QSL 280	280 (209) @ 2100	305 (227) @ 1900	1050 (1424) @ 1400
QSL 280**	280 (209) @ 2000	280 (209) @ 1800	950 (1288) @ 1400
QSL 250*	250 (186) @ 2200	250 (186) @ 2200	774 (1049) @ 1400

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

^*Indicates a restricted rating.

^**Indicates continuous rating / water management 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 fuel system, 24-valve design and centered injectors for one of the highest power-to-weight ratios in its class, with up to 50% torque rise. While a structurally reinforced engine block and heavy-duty roller followers give you the capacity to add a compression brake, if desired.

Specifications.

Advertised Horsepower	280-350 hp	209-261 kW
Peak Torque	950-1130 lb-ft	1288-1532 N•m
Cylinders	6
Oil System Capacity	24 U.S. quarts	22.7 liters
Length	44.4 in	1128.4 mm
Width	27.7 in	704 mm
Height	45.9 in	1166 mm
Weight (wet)	1627 lb	738 kg

Standard features on the QSL include:

Full-Authority Electronic Controls - Optimize engine operation and deliver critical information for controlling costs, reducing maintenance and seamless integration with other components
Integrated Block Design - Fluid circuits are integrated, replacing hoses and eliminating potential leak points. Accessories are mounted directly to the block for exceptional reliability, with a front seal designed for leak-free operation
Holset Wastegated Turbo - Wastegated design optimizes operation across the torque curve with improved response
24-Valve Cylinder Head - Four valves per cylinder for increased power with faster response at every rpm.
Low-Tension Belt Arrangement - This simplified design provides maximum power output through the accessory drive
Integrated Cold Start Aid - For improved low temperature startups

12 or 24 volt Electrical Capacity
Flywheels
Flywheel Housing
Starters
Dipsticks
Alternators
Oil Pans
Air Handling Options
Cooling System Option
Fan Drive Options
Accessory Drive Mounting Options – front mount accessory drive available for hydraulic pumps or air compressors.

Maintenance Intervals.

QSL engines are designed to run up to 500 hours between scheduled maintenance stops, including oil, oil filter and fuel filter changes.

Plus, the fuel filter incorporates an integrated water separator and water-in-fuel sensor to help protect against damage from water contamination.

So you get more uptime on every piece of QSL-powered equipment that you run.

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 partners with OEM engineers to test and match the power of the QSL engine to specific equipment models and applications. We use our advanced electronics to shape power curves and ratings to match the jobs your equipment will be doing, taking into account the working environment, load factors, ambient temperatures and operating modes. Then we optimize the engine's performance with other vehicle components, using Advisor.

Advisor.

Advisor software builds a virtual model to make sure every system (air, intake, exhaust, cooling) is integrated for optimum performance. It takes into account everything from load factors to operating climates to duty cycles - then identifies systems or components that could negatively impact reliability - listing alternatives that will deliver the performance you expect the first time - every time.