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
Features may include:
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 International Association of Classification Societies (IACS) and SOLAS requirements.
Photos
Highlights
Sleepy Eye, Minnesota
2024
Cummins
QSl9 For Marine QSL9 298
Diesel
Available
Specifications
2024
Cummins
QSl9 For Marine
QSL9 298
General
114 mm (4.49 in)
6
8.9 L (542 in3)
298 kW (406 MHP) 400 BHP
IMO 2 | EU 3a
2100 RPM
145 mm (5.71 in)
Turbocharged / Aftercooled
High Pressure Common Rail
Diesel
Of Block: 856.0 mm (33.7 in)
1213.7 mm (42.78 in)
969.8 mm (38.18 in)
1362.3 mm (53.63 in)
Overall: 977 kg (2153 lb)
Rotation: Counterclockwise facing flywheel | Rating: Medium Continuous