
CUMMINS
Manufacturer
QSL9
Model
#qsl9
Reference Number
20xx
Year
Need Noise Free Recreation?
QSL9 for Marine
Quiet operation, including an 80-percent reduction in noise at idle, is one of the many benefits from the common-rail fuel system.

Applications
Marine
Recreational Marine
Commercial Marine
Marine Propulsion Engines
Speed (RPM)
Horsepower
Power
290 - 410 hp
216 - 306 kW
Torque
1064 - 1162 lb-ft
1443 - 1575 N•m
Certification
RCD 2
Overview
- Dependability and long life proven through thousands of hours of reliable commercial and trawler operation
- Clean, quiet operation with virtually no startup smoke from the high-pressure common-rail fuel system
- Excellent fuel economy for long range cruising
- Peace of mind delivered by the Cummins Captain’s Briefing and global service network
- Built at Darlington Engine Plant in Darlington, U.K. and at Rocky Mount Engine Plant in Rocky Mount, NC, U.S.
Specifications
Configuration |
In-line, 6-cylinder, 4-stroke diesel |
Aspiration |
Turbocharged / Aftercooled |
Displacement |
8.9 L (542 in3) |
Bore & Stroke |
114 X 145 mm (4.49 X 5.71 in) |
Rotation |
Counterclockwise facing flywheel |
Fuel System |
High Pressure Common Rail |
Features
Engine Design – Robust engine designed for long life. Metric O-ring seals and edge molded gaskets eliminate fluid leaks. Aluminum pistons for exceptional durability
Fuel System – High Pressure Common Rail electronically-controlled fuel system provides constant high injection pressure regardless of engine speed or load condition. Benefits include low noise and vibration for quiet operation and faster load acceptance
Lubrication System – Standard capacity (18 L [19 quart]) marine grade oil pan, plus a selection of engine mounted and remote lube filters for installation flexibility and ease of maintenance
Cooling System – Single loop, low temperature aftercooling eliminates the need for two keel coolers and lowers emissions. Tube and shell heat exchanger designed for superior durability and ease of service with minimal maintenance requirements. Fan drive available for radiator cooled configurations
Air Intake System – Rear engine-mounted water cooled turbocharger from Cummins Turbo Technologies optimized for marine applications
Exhaust System – Cast water cooled exhaust manifold for lower surface temperatures, safety and improved performance
Electronics – 12v and 24v Quantum System electronics feature a proven ECM to monitor operating parameters such as fuel consumption, duty cycle, engine load and speed, while providing diagnostics, prognostics and complete engine protection. Simplified electrical customer interface box for all vessel connections to reduce installation complexity
Certifications – Complies with U.S. EPA Tier 3 emissions regulations without the use of aftertreatment. Designed to meet the InternationalAssociation of Classification Societies (IACS) and SOLAS requirements. Consult your local Cummins professional for a complete listing of available class approvals
Optional Equipment
- Front power take-off adapter
- Air and electric starting motors
- Integrated C Command Electronics panels with a selection of display options available to monitor and maximize operation and performance
- SAE B accessory drive
- Fully integrated type approved alarm and safety system
Ratings
Recreational Marine Propulsion Engines (Variable Speed Ratings)
Model |
kW |
MHP |
BHP |
Speed (RPM) |
Rating |
Emissions |
Performance Curve |
QSL9 |
302 |
410 |
405 |
2100 |
High Output |
IMO 2 | EPA 3 | RCD 2 |
Commercial Marine Propulsion Engines (Variable Speed Ratings)
Model |
kW |
MHP |
BHP |
Speed (RPM) |
Rating |
Emissions |
Performance Curve |
QSL9 |
209 |
285 |
281 |
1800 |
Continuous |
IMO 2 | EU 3a |
|
QSL9-SW |
213 |
290 |
286 |
1800 |
Continuous |
IMO 2 | EPA 3 | EU 3a |
|
QSL9-KC |
213 |
290 |
286 |
1800 |
Continuous |
IMO 2 | EPA 3 | EU 3a |
|
QSL9 |
243 |
331 |
326 |
1800 |
Heavy Duty |
IMO 2 | EU 3a |
|
QSL9-KC |
246 |
335 |
330 |
1800 |
Heavy Duty |
IMO 2 | EPA 3 | EU 3a |
|
QSL9-SW |
246 |
335 |
330 |
1800 |
Heavy Duty |
IMO 2 | EPA 3 | EU 3a |
|
QSL9 |
298 |
406 |
400 |
2100 |
Medium Continuous |
IMO 2 | EU 3a |
|
QSL9-SW |
302 |
410 |
404 |
2100 |
Medium Continuous |
IMO 2 | EPA 3 | EU 3a |
|
QSL9-KC |
302 |
410 |
404 |
2100 |
Medium Continuous |
IMO 2 | EPA 3 | EU 3a |
For more on marine emissions information, click here.