Cummins offers a complete line of variable speed propulsion solutions designed specifically for the challenges of commercial, government and recreational marine applications. Our propulsion line includes the mechanical K and N Series and the electronic Quantum Series.

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.

Enjoy the water with our recreational marine engines and generators. When you’re out enjoying the water with your crew, count on Cummins marine solutions to keep you cruising safely.

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 …

Learn more about Offshore Marine Engines from Cummins, Inc., an industry leader in reliable power solutions for more than 100 years.

Marine - Propulsion Engines 220-526 kW | 295-705 hp Proven acceleration and torque performance in thousands of boats from this dependable, four-valve-per-cylinder workhorse

Cummins rebuilt engines are delivered to marine customers with the same quality performance, reliability and durability that you’ve come to expect from Cummins. That’s the reason we offer a full 1-year/unlimited hours parts warranty on every engine from our Cummins Rebuild Centers.

Whether your waterway route is less than a mile or upwards of 600 miles, the Cummins Global passenger segment has a wide range of diesel engine power ratings from 250 - 4,200 hp designed to support both newly constructed and existing global passenger vessels.

Engine Design – Unmatched performance from industry-leading power density on this four-valve-per-cylinder engine. 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

Cummins Marine's extensive range of propulsion, auxiliary, recon and diesel electric engines, generator sets, premium options and more are offered online, in a mobile-friendly web app and in a downloadable PDF document.