Industry-leading technology allows Caterpillar to create the most reliable commercial engines for a variety of applications. From tugs and container vessels to yachts and sport fishers, Cat and MaK engines have demonstrated their efficiency countless times. With remarkable reliability and durability, these engines will exceed your expectations for decades.

Showing 25–36 of 58 results

C7.1 High Performance Propulsion Engine

Marine Power Systems

Power Range

400 bhp - 500 bhp (298 bkW - 373 bkW)

Speed Range

2900 rpm

Rotation from Flywheel End

Counterclockwise

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C7.1 Marine Auxiliary Engine (U.S. EPA Tier 3 / IMO II)

Marine Power Systems

Length

1095 mm (43.1 in)

Power Range

208 bkW (280 bhp) @ 2300 rpm

Configuration

In-line 6, 4-stroke-cycle diesel

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C7.1 Marine Propulsion Engine (U.S. EPA Tier 3 / IMO II)

Marine Power Systems

Power Range

280 bhp - 425 bhp (209 bkW - 317 bkW)

Speed Range

2300 - 2700 rpm

Emissions

U.S. EPA Tier 3, IMO II, RCD II, China II

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C9.3 Commercial Propulsion Engine

Marine Power Systems

Power Range

375-476 bhp (280-355 bkW)

Speed Range

1800, 2100, 2300 rpm

Emissions

IMO II, U.S. EPA Tier 3, China Stage II

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C9.3 Marine Generator Set

Marine Power Systems

Speed

200 ekW - 274 ekW

Aspiration

Turbocharged-aftercooled

Bore

115 mm (4.5 in)

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C9.3 Marine Generator Set / Auxiliary Engine

Marine Power Systems

Power Range

292 bhp - 436 bhp (218 bkW - 325 bkW)

Rated Engine Speed

1,500, 1,800 rpm

Aspiration

Turbocharged-aftercooled

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Cat C18 ACERT Propulsion Engine (Tier 3)

Marine Power Systems

Power Range

469-1001 bhp (350-747 bkW)

Speed Range

1800-2300 rpm

Emissions

EPA Tier 3 Commercial, IMO II, EU IW

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Cat C18 ACERT High Performance Propulsion Engine (Tier 3 Recreational)

Marine Power Systems

Power Range

1015-1150 mhp, 1001-1136 bhp, 747-847 bkW

Speed Range

2300 rpm

Emissions

EPA Tier 3, IMO II, EU IW

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Cat C18 ACERT High Performance Propulsion Engine (Tier 3)

Marine Power Systems

Power Range

814-1015 mhp, 803-1001 bhp, 599-747 bkW

Speed Range

2100-2300 rpm

Emissions

EPA Tier 3, IMO II, EU Stage IIIA

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Cat C18 ACERT Propulsion Engine (IMO II)

Marine Power Systems

Power Range

454-715 bhp (339-533 bkW)

Speed Range

1800-2100 rpm

Emissions

IMO II, EU IIIA

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Cat C18 Auxiliary/Generator Set Engine (EPA Tier 3)

Marine Power Systems

Minimum Rating

465 bkW (624 BHP)

Maximum Rating

599 bkW (803 BHP)

Aspiration

TA, TTA

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Cat C18 Auxiliary/Generator Set Engine (IMO II)

Marine Power Systems

Minimum Rating

301 bkW (404 BHP)

Maximum Rating

492 bkW (660 BHP)

Aspiration

TA, TTA

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