Cummins QSB6.7 550 HP Marine Diesel Engine

* 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
* 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

Features & Benefits

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. Consult your local Cummins professional for a complete listing of available class approvals.

Specifications : Cummins QSB6.7 550 HP Marine Diesel Engine

* Configuration: In-line, 6-cylinder, 4-stroke diesel
* Aspiration: Turbocharged / Aftercooled
* Displacement: 6.7 L (408 in3)
* Bore & Stroke: 107 X 124 mm (4.21 X 4.88 in)
* Rotation: Counterclockwise facing flywheel
* Fuel System: High Pressure Common Rail

Dimensions and Weight:

* Overall Length: 1263.8mm / 49.76in
* Length of Block: 748mm / 29.45in
* Overall Width: 910.6mm / 35.85in
* Overall Height: 857mm / 33.74in
* Weight: 658kg / 1450lb

Package Includes:

– Cummins QSB6.7 550 HP
– Gearbox: ZF 280-1 / Twin Disc MG5061SC
* Installed with gear cooler hoses and painted to match
* Torsional coupling, SAE #2 adapter, 12 volt electric shift
* Prop shaft companion flange- Pilot bored
* Standard mount brackets
– Complete Cummins engines- keel cooled configuration
– EPA 3/ IMO II Emissions
– 12 volt alternator/ 12 volt starter
– SAE 2 flywheel housing with flywheel
– Air filter- Kitted
– Front engine supports and 4 isolators
– Expansion tank- Kitted
– Gear cooler with pressure and temp sensors
– C Command Connect Premier System- Single Station
* Engine room panel with start/stop switches and 4″ digital display
* Main station: Start/stop/enable helm switches and 4″ digital display
* Alarms, NEMA 2000 converter, all harnesses
* 10′ Engine to CIB harness/ 20′ harnesses to main station
– Glendinning Electronic Controls- Single Station
* EEC 4 Controller with engine/gear harnesses
* Top mount shifter (2 button)- Main station w/ 20′ harness
– Dry exhaust elbow- Vertical
– Remote oil drain hose
– Single Racor 900 fuel filter with WIF sensor and 15′ harness
– Painted Cummins Cloud White