2025 Cummins QSl9 For Marine QSL9-SW 302

2025 Cummins QSl9 For Marine QSL9-SW 302

• 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:

• Robust engine designed for long life. Metric O-ring seals and edge molded gaskets eliminate fluid leaks. Aluminum pistons for exceptional durability

• 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

• 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

• 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

• Rear engine-mounted water cooled turbocharger from Cummins Turbo Technologies optimized for marine applications

• Cast water cooled exhaust manifold for lower surface temperatures, safety and improved performance

• 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

• 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.