Caterpillar Marine

Marine Diesel Engines and Generators

Marine Diesel Engines and Generator Sets

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From marine diesel engines and generator sets to technology solutions, Caterpillar Marine is your partner on the water — backed by the worldwide dealer support network.

For clean, reliable power, choose from our broad product lineup that includes marine diesel and dual fuel propulsion engines, auxiliary engines, marine generator sets and complete fuel gas handling systems. And our technology-enabled solutions keep your vessels running safely, efficiently and profitably.

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Discover why Caterpillar Marine customers like Harley Marine Services say EPA Tier 4 Final engines with SCR technology are the better choice, by far.




Offshore Marine Engines

Rely on nonstop power, even during your toughest days at sea. That’s our main priority for offshore operations: ZERO downtime.

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Tug & Salvage Marine Engines

Handle the heaviest loads in the toughest conditions with Cat marine diesel engines. Whether in the harbor or at your terminal, our dependable high-speed engines will help give you all the bollard pull you need.

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Governmental Marine Engines

The safety of your fleet and your crew is critical, so we are with you wherever you are and whatever your mission.

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Pleasure Craft Marine Engines

Cat marine diesel engines set the standard for quality, performance and reliability. Throughout the power range, Cat engines have the power not just to accelerate, but to exhilarate.

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Inland Waterway Marine Engines

See how Cat engines can keep inland cargo vessels moving in any application.

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Fishing Marine Engines

Caterpillar offers the industry’s best range of engines and power solutions for fishing vessels.

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Cargo Marine Engines

Get your vessel to its destination on time, every time. Meet your deadline and your bottom line with reliable and efficient Cat and MaK marine diesel engines.

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Ferry & Cruise Marine Engines

Your passengers can count on you to get them where they’re going on time, every time. Tested and proven, Cat and MaK diesel engines keep your costs low with dual fuel options while maintaining clean, quiet comfort.

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Dredge Marine Engines

Keep your vessels running and your waterways clear with Cat engines and power solutions for dredging.

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Cat® Marine Digital Services

Whether you only want to access the data, be informed of an unsafe condition, or be advised on how to improve the efficiency of your operation, Caterpillar Marine has the right combination of services for you and your business.

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Emissions and Alternative Fuels

Caterpillar is committed to providing equipment that meets the world’s most stringent emissions standards, as well as the use of alternative fuels.

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Marine Power Solutions Guide

Marine Power Solutions Guide

Get the detailed specifications of Caterpillar Marine solutions needed for your projects right at your fingertips.

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Marine Product Support

No matter where you go in the world, Caterpillar and Cat dealers are there with the parts and expertise to keep your engine running.

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Find your MaK Dealer

Your MaK dealer is committed to maximizing your success, helping you get the most out of your operations with site-level solutions, service and support.

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Talk to your Dealer

Need help determining which product meets your needs? Your Cat dealer can help you find the right model and ensure that your equipment is operating correctly to help you get the job done.

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Marine Webinars

Marine Webinars

Tune into free, informative Caterpillar marine webinars hosted by our engineers and experts for an inside look at what’s new with engines, technologies and more.

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Register your engine to take advantage of the benefits of a Caterpillar warranty.

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A Century On The Water. Four Decades With Caterpillar

A Century On The Water. Four Decades With Caterpillar

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Commercial Vessel Financing

With 22 years of experience in marine lending, our commitment to your success is long term

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Optimism and New Building in the Ferry Segment

Optimism and New Building in the Ferry Segment

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Cat® Forums

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The Power of Cat® Equipment

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Marine News

Read the latest Marine news here.

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