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Better Waterways

Find Your Course To Meet Emission Standards

Top-down perspective of a blue maritime vessel on top of a black and white background image of a tanker at berth.
Top-down perspective of a blue maritime vessel on top of a black and white background image of a tanker at berth.

Marine Power To Meet Emission Standards

Let Caterpillar Lead You To New Waterways

When it’s time to repower an existing vessel or build a new one, the engine you choose matters; it needs to comply with strict emission standards. Caterpillar Marine has developed a full line of engines to meet regional and global emission standards, including U.S. EPA Tier 4, EU Stage V and IMO III, without sacrificing performance.

Emission standards can be difficult waters to navigate, but that’s what we’re here for. We design engines you can rely on to meet emission standards, perform efficiently and keep ownership costs low. If you’d like to learn more, you’re in the right place.

As the world’s toughest emission standard, EU Stage V places the most stringent limits on the emission of particulate matter, nitrogen oxides, carbon monoxide and hydrocarbons from non-road mobile machinery.

The implementation of EU Stage V replaced the various and multi-layered standards across multiple countries with one regulation. EU Stage V also covers previously unregulated engines, along with marine engines above 19 bkW and previously unregulated marine engines above 560 bkW.

The increased restrictions have encouraged manufacturers to implement various exhaust gas aftertreatment technologies to control and manage engine emissions—such as diesel oxidation catalysts, diesel particulate filters, selective catalytic reduction and exhaust gas recirculation.

The prow of a large maritime vessel making its way through the gray waters of an inland waterway.
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Find Cat® Marine Engines By Emission Standard

Use our convenient filter search to find the Cat® Marine Engine that meets your performance and compliance needs—IMO, EU or U.S. EPA.

  • Power Range
    365-400 bhp (272-298 bkW)
    365-400 bhp (272-298 bkW)
    Speed Range
    1800 rpm
    1800 rpm
    Emissions
    Non-Certified
    Non-Certified

    3406C

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  • Power Range
    1281 - 2552 bhp
    1281 - 2552 bhp
    Speed Range
    1200 - 1800 rpm
    1200 - 1800 rpm
    Emissions
    IMO II, China II
    IMO II, China II

    3512C

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  • Power Range
    1550 - 1700 ekW
    1550 - 1700 ekW
    Frequency
    60 hz
    60 hz
    Emissions
    IMO II
    IMO II

    3512C

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  • Power Range
    1341-2550 bhp (1000-1902 bkW)
    1341-2550 bhp (1000-1902 bkW)
    Speed Range
    1600 - 1800 rpm
    1600 - 1800 rpm
    Emissions
    U.S. EPA Tier 4, IMO II/III, EU Stage V
    U.S. EPA Tier 4, IMO II/III, EU Stage V

    3512E

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Our Engines in Action

Here are real-world examples of our engines helping maritime businesses meet emission standards while propelling growth.