Advanced diesel and natural gas marine engines, a complete line of constant speed marine power generator sets, and partnerships for the latest hybrid, battery electric, and fuel cell options allows Cummins Marine to give you the best power in the industry.
Innovating the next generation of marine engines
You'll find thoughtful design and next-level technology that is good for mariners and the environment across our complete line of propulsion, generator set, and auxiliary power solutions. Our marine power solutions are designed to meet the challenges of commercial, government and recreational marine applications – from high output to light duty.
Power
850 - 1500 hp
Power
634 - 1119 kW
Certification
Tier 1,EPA Tier 1
Power
3200 - 4200 hp
Power
2386 - 3132 kW
Torque
15462 - 17802 lb-ft
Torque
20964 - 24136 N•m
Certification
IMO Tier II
The most-trusted engine power for every marine application
Mariners know best, so they choose the best. We’re here to help you select the right spec for your application — no matter your needs.
Recreational
Trust us to provide fun and power on the water.
Tugboats
Maximize tugging power and maneuverability when it matters most.
Passenger vessels
Ensure a safe, smooth ride with engines rated 250 - 4,200 HP.
Fishing
Trust Cummins to help you keep your fishing operation running smoothly.
Government and defense
Customized solutions for new construction and defense platforms.
Yachting
Power your luxury yacht with classic, dependable power.
Offshore
Reliable solutions to help you transport people and supplies.
Inland
Trust our innovative technology and support to keep moving.
Pilot
Maintain port and harbor operations with pilot boat engines.
The global leader in marine power solutions
Cummins Marine Engines in action
The engine support you need, when you need it
Cummins provides a full range of product resources, warranty coverage, and service and support to further protect your investment.
Global reach, local support
Find a location near you, get help from one of our marine experts, and schedule service or maintenance.
White papers and technical resources
Access our library of marine technical documents and informational papers.
Marine Warranty
Every Cummins marine engine is backed by a comprehensive warranty that is valid and consistent worldwide.
Discover our full suite of marine power solutions
Beyond engines, Cummins offers generator sets that provide the power and propulsion for a range of vessels, as well as accessories to to operate them with ease.
Marine Generator Sets
Every major component of our marine generators operate with complete system harmony for optimal performance and maximum efficiency.
Marine Accessories
Cummins offers premium options to help vessel owners and operators manage operating costs, reduce maintenance, and tailor the engine for a specific application.
Global power technology leader Cummins Inc. (NYSE: CMI) is excited to announce the launch of the Marine Diesel Cummins Turbo (MDCT) genset. This robust genset can be fitted with either the low or high kW Cummins B4.5 auxiliary engine, giving genset ratings of 40 kWe – 80 kWe and 80 kWe – 110 kWe respectively. The MDCT generator set is available for orders now with estimated delivery in late 2023.&
May 08, 2023
Today’s modern diesel engine is an impressive feat of innovation. Cummins Inc. is no stranger to innovation. In fact, the company spends $1 billion annually on research and technology across its product portfolio with 11,000 of the brightest engineers innovating for their customers. Today the company is taking a look at three of the innovations that have shaped the advanced diesel engines that are
April 10, 2023
Today, global power and technology leader, Cummins Inc. (NYSE: CMI), and leading provider of energy storage solutions, Leclanché S.A (SIX: LECN), announced the signing of a Memorandum of Understanding (MOU). The collaboration represents a significant step forward in providing customers with a broader portfolio of integrated power solutions. The MOU enables Cummins and Leclanché to offer custome
March 28, 2023
