Marine Power Systems

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.

Auxiliary Engines

For unique applications requiring a custom approach - Caterpillar marine generator sets provide the power you work with and live by. So everything about them is built to help you do your job, whether that means bringing in a catch or cargo, or simply providing a pleasurable day on the water.

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3512E

Power Range
732-2399 bhp (546-1789 bkW)

Aspiration
TA

Emissions
U.S. EPA Tier 4 Final, IMO III

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3516E

Power Range
787-3175 bhp (587-2368 bkW)

Aspiration
TA

Emissions
U.S. EPA Tier 4 Final, IMO III

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C18 IMO II

Minimum Rating
301 bkW404 BHP

Maximum Rating
492 bkW660 BHP

Aspiration
TA, TTA

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C18 Tier 3

Minimum Rating
465 bkW624 BHP

Maximum Rating
599 bkW803 BHP

Aspiration
TA, TTA

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C280

Minimum Rating
1730 bkW2320 BHP

Maximum Rating
5420 bkW7268 BHP

Aspiration
TA

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C32 IMO II

Minimum Rating
590 bkW791 BHP

Maximum Rating
994 bkW1333 BHP

Aspiration
TTA

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C32 IMO III

Minimum Rating
262 bkW352 BHP

Maximum Rating
874 bkW1172 BHP

Aspiration
Turbocharged-aftercooled aspiration

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C32 Tier 3

Minimum Rating
781 bkW1047 BHP

Maximum Rating
994 bkW1333 BHP

Aspiration
TTA

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C32 Tier 3 / IMO II

Minimum Rating
234 bkW314 BHP

Maximum Rating
994 bkW1333 BHP

Aspiration
Turbocharged-aftercooled aspiration

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C7.1 Tier 3 / IMO II

Length
1095 mm43.1 in

Power Range
208 bkW (280 bhp) @ 2300 rpm

Height
891 mm35.1 in

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C9.3 Auxiliary Engine

Minimum Rating
218 bkW292 BHP

Maximum Rating
325 bkW436 BHP

Aspiration
TA

Commercial Propulsion Engines

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.

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3508C

Power Range
775-1100 bhp (578-820 bkW)

Speed Range
1200-1600 rpm

Emissions
IMO II, EU IW

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3512C IMO II

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

Power Range
1340-2366 bhp (1000-1765 bkW)

Speed Range
1600-1800 rpm

Emissions
EPA Tier 3, IMO II

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3512E

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 IMO II

Power Range
1650-3386 bhp (1230-2525 bkW)

Speed Range
1200-1800 rpm

Emissions
IMO II

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3516C Tier 3

Power Range
2131-2675 bhp (1590-1995 bkW)

Speed Range
1600 rpm

Emissions
EPA Tier 3, IMO II

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3516E

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

Power Range
340-490 bhp (254-366 bkW)

Speed Range
1800-2300 rpm

Emissions
IMO I, IMO II

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C175-16

Power Range
2683-3420 bhp (2001-2550 bkW)

Speed Range
1600-1800 rpm

Emissions
IMO II

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C18 ACERT IMO II

Power Range
454-715 bhp (339-533 bkW)

Speed Range
1800-2100 rpm

Emissions
IMO II, EU IIIA

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C18 ACERT Tier 3

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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C280-12

Power Range
4640-5096 bhp (3460-3800 bkW)

Speed Range
900 rpm

Emissions
IMO II

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C280-12 Tier 4

Power Range
4962-5444 bhp (3700-4060 bkW)

Speed Range
1000 rpm

Emissions
EPA Tier 4, IMO II

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C280-16

Power Range
6169-7577 bhp (4600-5650 bkW)

Speed Range
900-1000 rpm

Emissions
IMO II

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C280-6

Power Range
2320-2722 bhp (1730-2030 bkW)

Speed Range
900-1000 rpm

Emissions
IMO II

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C280-8

Power Range
3084-3393 bhp (2300-2530 bkW)

Speed Range
900 rpm

Emissions
IMO II

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C280-8 Tier 4

Power Range
3299-3634 bhp (2460-2530 bkW)

Speed Range
1000 rpm

Emissions
EPA Tier 4, IMO III

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C32 ACERT IMO II

Power Range
660-1450 bhp (492-1081 bkW)

Speed Range
1600-2300 rpm

Emissions
IMO II, EU IW

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C32 ACERT Tier 3

Power Range
750-1800 bhp (559-1342 bkW)

Speed Range
1600-2300 rpm

Emissions
EPA Tier 3, IMO II, EU IW

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C32 Tier 3 / IMO II

Minimum Rating
234 bkW314 BHP

Maximum Rating
994 bkW1333 BHP

Aspiration
Turbocharged-aftercooled aspiration

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C32 Tier 4 / IMO III

6 Brick Z-Flow - Length
3751 mm147.7 in

Minimum Length
2130 mm83.9 in

6 Brick Z-Flow - Height
597 mm23.5 in

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C7.1 Tier 3 / IMO II

Length
1095 mm43.1 in

Minimum Rating
208 bkW280 BHP

Height
891 mm35.1 in

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C9.3 ACERT

Power Range
375-476 bhp (280-355 bkW)

Speed Range
1800-2300 rpm

Emissions
EPA Tier 3 Commercial, IMO II, EU IW

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M 20 C

Power Range
1020-1800 kW

Speed Range
900-1000 rpm

Emissions
IMO II / IMO III with SCR

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M 25 C

Power Range
1740-3000 kW

Speed Range
720-750 rpm

Emissions
IMO II

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M 25 E

Power Range
2100-3150 kW

Speed Range
720-750 rpm

Emissions
IMO II / IMO III with SCR

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M 32 C

Power Range
2880-4500 kW

Speed Range
600 rpm

Emissions
IMO II

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M 32 E

Power Range
3300 - 4950 kW

Speed Range
720-750 rpm

Emissions
IMO II / IMO III with SCR

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M 34 DF

Power Range
3060-4770 bkW

Speed Range
720 / 750 rpm

Emissions
IMO II

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M 43 C

Power Range
6000 - 9450 kW

Speed Range
500-514 rpm

Emissions
IMO II

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M 46 DF

Power Range
5400 - 8685 kW

Speed Range
500 / 514 rpm

Emissions
IMO II in diesel mode / IMO III in gas mode

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VM 32 C

Power Range
6000-8000 kW

Speed Range
720-750 rpm

Emissions
IMO II

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VM 32 E

Power Range
6360 - 8960 kW

Speed Range
720/750 rpm

Emissions
IMO II

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VM 43 C

Power Range
12000 - 16800 kW

Speed Range
500-514 rpm

Emissions
IMO II

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VM 46 DF

Power Range
10800 - 15440 kW

Speed Range
500 / 514 rpm

Emissions
IMO II in diesel mode / IMO III in gas mode

Controls

Controls

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MPC 500

Full Redundancy and Graphic Displays
Yes

Load Control of Main Engines
Yes

Interface to DP systems
Yes

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MPC 800

Full Redundancy and Graphic Displays
Yes

Load Control of Main Engines
Yes

Interface to DP systems
Yes

High Performance Propulsion and Maneuvering Solutions

Cat® high performance marine engines offer superior performance while meeting international requirements. Our marine engines include innovations such as ACERTTM Technology and Caterpillar Common Rail. Additionally, they are MIL-E Qualified (NVR) and MIL-S-901 Shock Qualified. For pleasure craft and recreational customers - It's all about you! Throughout the power range, Cat engines have the power not just to accelerate, but to exhilarate. Continual advancements in electronic engine technology mean Cat marine engines satisfy worldwide emissions regulations and still deliver a surge of adrenaline whenever and wherever required. In short, with Caterpillar, your pleasure craft remains precisely that — a pleasure.

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3512C HD

Power Range
1340-2366 bhp (1000-1765 bkW)

Speed Range
1600-1800 rpm

Emissions
EPA Tier 3, IMO II

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3512C HD

Power Range
1340-2366 bhp (1000-1765 bkW)

Speed Range
1600-1800 rpm

Emissions
EPA Tier 3, IMO II

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C12

Power Range
578-609 mhp (570-600 bhp)

Speed Range
2300 rpm

Emissions
IMO I

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C12 ACERT

Power Range
660-705 bhp (492-526 bkW)

Speed Range
2300 rpm

Emissions
IMO II

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C12.9

Power Range
850-1000 mhp, 838-985 bhp, 625-735 bkW

Speed Range
2300 rpm

Emissions
EPA Tier 3, IMO II, EU Stage IIIA

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C18 ACERT Tier 3

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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C18 ACERT Tier 3 Recreational

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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C32 ACERT Tier 3 Recreational

Power Range
1600-1900 bhp (1193-1417 bkW)

Speed Range
2300 rpm

Emissions
EPA Tier 3, IMO II, EU IW

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C7.1

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

Aspiration
Turbocharged, aftercooled

Bore
105 mm4.13 in

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C8.7

Power Range
478 bkW641 BHP

Aspiration
TSA

Bore
117 mm4.6 in

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C9 ACERT

Power Range
503-567 bhp (375-423 bkW)

Speed Range
2500 rpm

Emissions
IMO II

Main Pitch Propeller

Main Pitch Propeller

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MPP HUB

Propeller Diameter
1200-8500 mm

Shaft Power
500-3000 kW

Propeller Material
Bronze or Stainless Steel

Marine Generator Sets

Even on a good day, you have enough on your mind without worrying about the reliability of your marine generator sets. They need to perform day in and day out - plain and simple. With over 80 years of marine power experience behind them, Cat marine generator sets are built to provide dependable, efficient service under extreme conditions. They combine proven designs and manufacturing methods with the latest technology, such as advanced control, to deliver more power and greater efficiency, while offering enhanced monitoring. So even when your day turns out to be less than perfect, you can count on Caterpillar to deliver the power you live by.

Marine Generators – More Power, Greater Efficiency

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3512C

Minimum Rating
1550 eKW (1937 kVA)

Maximum Rating
1700 eKW (2125 kVA)

Frequency
60 hz

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C1.5

Minimum Rating
10 ekW (10 kVA)

Maximum Rating
13 ekW (16.5 kVA)

Frequency
50 Hz or 60 Hz

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C18 (SRMP) Marine Generator Set

Minimum Rating
260 ekW (325 kVA)

Maximum Rating
565 ekW (706 kVA)

Frequency
50 hz

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C2.2

Minimum Rating
16 ekW (16kVA)

Maximum Rating
27 ekW (27 kVA)

Frequency
50 Hz or 60 Hz

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C280-12

Minimum Rating
3520 ekW (4400 kVA)

Maximum Rating
3640 ekW (4550 kVA)

Frequency
50 Hz or 60 Hz

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C280-16

Minimum Rating
4700 ekW (5875 kVA)

Maximum Rating
4840 ekW (6050 kVA)

Frequency
50 Hz or 60 Hz

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C280-6

Minimum Rating
1760 ekW (2200 kVA)

Maximum Rating
1820 ekW (2275 kVA)

Frequency
50 Hz or 60 Hz

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C280-8

Minimum Rating
2350 ekW (2938 kVA)

Maximum Rating
2420 ekW (3025 kVA)

Frequency
50 Hz or 60 Hz

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C32 ACERT IMO II

Minimum Rating
550 eKW (688 kVA)

Maximum Rating
940 ekW (1175 kVA)

Frequency
50 Hz or 60 Hz

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C32 ACERT Tier 3

Minimum Rating
730 ekW (913 kVA)

Maximum Rating
940 ekW (1175 kVA)

Frequency
60hz

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C32 IMO III

Minimum Rating
219 ekW

Maximum Rating
940 ekW

Frequency
60hz

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C32 Tier 3 / IMO II

Minimum Rating
219 ekW

Maximum Rating
940 ekW

Frequency
60hz

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C32 Tier 4 / IMO III

Minimum Rating
282 ekW

Maximum Rating
940 ekW

Frequency
60hz

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C4.4

Minimum Rating
36.0R ekW (45 kVA)

Maximum Rating
99.0 ekW (123 kVA)

Frequency
50 Hz or 60 Hz

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C4.4 ACERT

Minimum Rating
58R ekW (50 Hz), 51R ekW (60 Hz)

Maximum Rating
88R ekW (50 Hz), 105R ekW (60 Hz)

Frequency
50 Hz or 60 Hz

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C7.1

Minimum Rating
100 ekW (125 kVA)

Maximum Rating
200 ekW (250 kVA)

Frequency
50 Hz or 60 Hz

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C9.3 Marine Generator Set

Minimum Rating
185R ekW (231 kVA) at 50hz, 224R ekW (280 kVA) at 60hz

Maximum Rating
250R ekW (313 kVA) at 50hz, 300 ekW (375 kVA) at 60hz

Frequency
50 Hertz & 60 Hertz

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M 20 C

Minimum Rating
979 kWe (1224 kVA)

Maximum Rating
1726 kWe (2160 kVA)

Configuration
6,8,9 Cylinder

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M 25 C

Minimum Rating
1669 kWe (2088 kVA)

Maximum Rating
2877 kWe (3600 kVA)

Configuration
6,8,9 Cylinder

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M 25 E

Minimum Rating
2016 kWe (2625 kVA)

Maximum Rating
3024 kWe (3938 kVA)

Configuration
6,8,9 Cylinder

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M 32 C

Minimum Rating
2762 kWe (3456 kVA)

Maximum Rating
4316 kWe (5400 kVA)

Configuration
6,8,9 Cylinder

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M 32 E

Minimum Rating
3165 kWe (3960 kVA)

Maximum Rating
5747 kWe (5940 kVA)

Bore
320 mm12.6 in

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M 34 DF

Minimum Rating
2934 kWe (3672 kVA)

Maximum Rating
4574 kWe (5724 kVA)

Configuration
6,8,9 Cylinder

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M 43 C

Minimum Rating
5754 kWe (7200 kVA)

Maximum Rating
9063 kWe (11340 kVA)

Configuration
6,7,8,9 Cylinder

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M 46 DF

Minimum Rating
5179 kWe (6480 kVA)

Maximum Rating
8329 kWe (10422 kVA)

Bore
460 mm16.93 in

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VM 32 C

Minimum Rating
5754 kWe (7200 kVA)

Maximum Rating
7672 kWe (9600 kVA)

Configuration
12,16 Cylinder

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VM 32 E

Minimum Rating
6099 kWe (7632 kVA)

Maximum Rating
8593 kWe (10752 kVA)

Configuration
12,16 Cylinder

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VM 43 C

Minimum Rating
11508 kWe (14400 kVA)

Maximum Rating
16111 kWe (20160 kVA)

Configuration
12,16 Cylinder

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VM 46 DF

Minimum Rating
10357 kWe (12960 kVA)

Maximum Rating
14807 kWe (18528 kVA)

Configuration
12,16 Cylinder

Marine Thruster Azimuth

Marine Thruster Azimuth

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MTA CP

Propeller Diameter
1100-3400 mm

Shaft Power
500-3500 kW

Pitch
Controllable Pitch

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MTA FP

Propeller Diameter
1100-3400 mm

Shaft Power
500-3500 kW

Pitch
Fixed Pitch

Marine Thruster Transverse

Marine Thruster Transverse

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MTT CP

Propeller Diameter
1100-3200 mm

Shaft Power
200-3600 kW

Pitch
Controllable Pitch

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MTT FP

Propeller Diameter
1100-3200 mm

Shaft Power
200-3600 kW

Pitch
Fixed Pitch

Twin Fin

Twin Fin

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Twin Fin

Customized For Each Application
Yes

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