Engine uptime is critical for you, your crew, your clients and your bottom line. Industry-leading technology allows Caterpillar to create the most reliable commercial engines for a variety of applications. From tugs and container vessels to sport fishers, Cat marine engines have demonstrated their efficiency throughout the years. With remarkable reliability and durability, these engines will exceed your expectations for decades to come.

Showing 1–12 of 37 results

3406C Propulsion Engine

Commercial Propulsion Engines

Power Range

365-400 bhp (272-298 bkW)

Speed Range

1800 rpm

Aspiration

TA

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3508C Propulsion Engine

Commercial Propulsion Engines

Power Range

775-1100 bhp (578-820 bkW)

Speed Range

1200-1600 rpm

Emissions

IMO II, EU IW

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3512C Propulsion Engine (IMO II)

Commercial Propulsion Engines

Power Range

1280-2551 bhp (955-1902 bkW)

Speed Range

1200 rpm, 1600 rpm, 1800 rpm

Emissions

IMO II, EU IW

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3512C Tier 3 Marine Propulsion Engine

Commercial Propulsion Engines

Power Range

1340-2366 bhp (1000-1765 bkW)

Speed Range

1600-1800 rpm

Emissions

EPA Tier 3, IMO II

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3512E Marine Propulsion Engine (U.S. EPA Tier 4 Final)

Commercial Propulsion Engines

Power Range

1341-2549 bhp (1000-1901 bkW)

Speed Range

1600-1800 rpm

Emissions

U.S. EPA Tier 4 Final, IMO III

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3516C Marine Propulsion Engine

Commercial Propulsion Engines

Power Range

1650-3386 bhp (1230-2525 bkW)

Speed Range

1200-1800 rpm

Emissions

IMO II

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3516C Propulsion Engine (Tier 3)

Commercial Propulsion Engines

Power Range

2131-2675 bhp (1590-1995 bkW)

Speed Range

1600 rpm

Emissions

EPA Tier 3, IMO II

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3516E Marine Propulsion Engine (U.S. EPA Tier 4 Final)

Commercial Propulsion Engines

Power Range

2501-3386 bhp (1865-2525 bkW)

Speed Range

1600-1800 rpm

Emissions

U.S. EPA Tier 4 Final, IMO III

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C12 Propulsion Engine

Commercial Propulsion Engines

Power Range

340-490 bhp (254-366 bkW)

Speed Range

1800-2300 rpm

Emissions

IMO I, IMO II

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C175-16 Propulsion Engine

Commercial Propulsion Engines

Power Range

2683-3420 bhp (2001-2550 bkW)

Speed Range

1600-1800 rpm

Emissions

IMO II

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C280-12 Marine Propulsion Engine (EPA Tier 4)

Commercial Propulsion Engines

Power Range

4962-5444 bhp (3700-4060 bkW)

Speed Range

1000 rpm

Emissions

EPA Tier 4, IMO II

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C280-12 Propulsion Engine

Commercial Propulsion Engines

Power Range

4640-5096 bhp (3460-3800 bkW)

Speed Range

900 rpm

Emissions

IMO II

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