2024 Cummins QSB6.7/QSB7 For Marine QSB6.7 405

2024 Cummins QSB6.7/QSB7 For Marine QSB6.7 405

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  • Year 2024
  • Make Cummins
  • Model QSB6.7/QSB7 For Marine
2024 Cummins QSB6.7/QSB7 For Marine QSB6.7 405

2024 Cummins QSB6.7/QSB7 For Marine QSB6.7 405

2024 Cummins QSB6.7/QSB7 For Marine QSB6.7 405

  • 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:

Engine Design
  • 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
Fuel System
  • 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.
Lubrication System
  • Front-mounted filters. Oil service interval increased to 500 hours if using ULSD fuels
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
  • New Walker air filter significantly reduces noise
Exhaust System
  • Cast water cooled exhaust manifold for lower surface temperatures, safety and improved performance
Electrical System
  • 12v and 24v, isolated and non-isolated, systems available
Electronics
  • 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.

Engine

Bore 107 mm (4.21 in)
Cylinder Liners 6
Displacement 6.7 L (408 in3)
Engine Power 405 kW (550 MHP) 542 BHP
Emissions IMO 2 | EPA 3 | RCD 2
Rated Engine Speed 3300 RPM
Stroke 124 mm (4.88 in)
Aspiration Turbocharged / Aftercooled

Fuel System

Fuel System High Pressure Common Rail
Fuel Type Diesel

Dimensions

Length Of Block: 748.0 mm (29.45 in)
Overall Height 857.0 mm (33.74 in)
Overall Width 910.6 mm (35.85 in)
Overall Length 1263.8 mm (49.76 in)

Weights

Weight Overall: 658 kg (1450 lb)

Features

Features Rotation: Counterclockwise facing flywheel | Rating: High Output

Product Photography