MacKay's Truck & Trailer Center

Information

2024 Cummins QSB6.7/QSB7 For Marine QSB6.7 SL 279

• Quiet operation, including an 80-percent reduction in noise at idle, is one of the many benefits from the common-rail fuel system

• Enhanced sociability from the high-pressure common-rail design virtually eliminates smoke and improves the whole boating experience

• Peace of mind delivered by the Cummins Captain’s Briefing and global service network

Features may include:

• Unmatched performance driven through a perfectly matched turbocharger and a new 24-valve cylinder head that delivers industry-leading power density. Maximize vessel performance and access comprehensive vessel diagnostic information via SmartCraft® electronics. Peace of mind delivered by the Cummins Captain’s Briefing and global service network

• Bosch HPCR with hardened components to safely operate alternative fuels such as kerosene and JP8/JP5. Quiet operation, including an 80-percent reduction in noise at idle. Enhanced sociability virtually eliminates smoke and improves the whole boating experience.

• Front-mounted filters. Oil service interval increased to 500 hours if using ULSD fuels

• 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

• New Walker air filter significantly reduces noise

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

• 12v and 24v, isolated and non-isolated, systems available

• 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.