500 - 700 hp

373 - 522 kW


0 - 0 lb-ft

0 - 0 N•m


IMO Tier I


Commercial Marine, Marine, Marine Auxiliary Engines, Marine Propulsion Engines, Recreational Marine

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373-522 kW | 500-700 hp

  • Proven legacy in tough commercial marine environments, hard earned over the last 25 years
  • Designed to withstand the challenging conditions commercial marine operators often face; this same reliable, durable power is now available for recreational boating applications, including super yachts and yacht support vessels
  • IMO Tier I certified and many ratings are also IMO Tier II certified
  • Covered by a comprehensive one year warranty and backed by Cummins global service network
  • Built at Seymour Engine Plant in Seymour, IN, U.S. and Cummins India Limited in Pune, India

In-line, 6 cylinder, 4-stroke diesel


Turbocharged / Aftercooled


19 L (1150 in3)

Bore & Stroke

159 x 159 mm (6.25 x 6.25 in)


Counterclockwise facing flywheel

Fuel System

Pressure Time (PT)

Overall length

1877 mm

Length of block
Overall width

1003 mm

Overall height

1905 mm

Overall weight

2073 kg

Engine Design
Rugged in-line six cylinder designed for heavy duty applications. Replaceable wet cylinder liners for longer life and lower rebuild costs. Individual, four valve design cylinder heads for improved economy and performance. Gallery cooled pistons for maximum durability
Fuel System
Dependable Cummins PT fuel system can be operated mechanically or with CENTRY electronics for precise engine fueling. Step Timing Control (STC) allows for smooth engine acceleration under load. Premium fuel injectors utilize ceramic components for increased durability
Cooling System
Keel cooled or engine mounted heat exchanger system available. Spin-on Cummins water treatment filters for protection against cooling system corrosion
Exhaust System
Water cooled exhaust manifold reduces emissions and cools engine surface temperatures
Air System
Top mounted Cummins turbocharger with vertical or horizontal elbow, optimized for marine applications. Marine grade air cleaner with air inlet restriction indicator. Low temperature aftercooler available for increased efficiency. Cast iron water cooled exhaust manifold
Lubrication System
Marine grade steel or cast aluminum lube oil pan (72 L [19 gal]). Cummins spin-on oil filters available handed for simplified service
24 volt standard electrical system with 12 volt options available
Complies with IMO Tier II emissions regulations. Certificates of compliance are available from the U.S. EPA and Lloyd’s Register of Shipping. Consult your local Cummins professional for a complete listing of current marine agency approvals for this engine
Optional Equipment
- Direct mounted front power take-off - Duplex lube and fuel filtration - Engine room and pilot house instrumentation with analog gauges - SAE A and B accessory drives - Integral marine gear oil cooler - C Command PT panels - CENTINEL™ oil management system
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