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 engines have demonstrated their efficiency countless times. With remarkable reliability and durability, these engines will exceed your expectations for decades.
Commercial Propulsion Engines
High Performance Propulsion and Maneuvering Solutions
Marine Generator Sets
Auxiliary Engines
Controls
Commercial Propulsion Engines
-
3406C Propulsion Engine
- Power Range
- 365-400 bhp (272-298 bkW)
- Speed Range
- 1800 rpm
- Emissions
- Non-Certified
-
3508C Propulsion Engine
- Power Range
- 775-1100 bhp (578-820 bkW)
- Speed Range
- 1200-1600 rpm
- Emissions
- IMO II, EU IW
-
3512C
- Power Range
- 1281 - 2552 bhp
- Speed Range
- 1200 - 1800 rpm
- Emissions
- IMO II, China II
-
3512C Propulsion Engine (IMO II)
- Power Range
- 1280-2551 bhp (955-1902 bkW)
- Speed Range
- 1200 rpm, 1600 rpm, 1800 rpm
- Emissions
- IMO II, EU IW
-
3512C Tier 3 Marine Propulsion Engine
- Power Range
- 1340-2366 bhp (1000-1765 bkW)
- Speed Range
- 1600-1800 rpm
- Emissions
- EPA Tier 3, IMO II
-
3512E Marine Propulsion Engine (U.S. EPA Tier 4 Final)
- Power Range
- 1341-2550 bhp (1000-1902 bkW)
- Speed Range
- 1600 - 1800 rpm
- Emissions
- U.S. EPA Tier 4, IMO II/III, EU Stage V
-
3512E Marine Propulsion Engine (U.S. EPA Tier 4 Final)
- Power Range
- 1341-2549 bhp (1000-1901 bkW)
- Speed Range
- 1600-1800 rpm
- Emissions
- U.S. EPA Tier 4 Final, IMO III
-
3516C
- Power Range
- 2000-3385 bhp (1492-2525 bkW)
- Speed Range
- 1200-1800 rpm
- Emissions
- IMO II
-
3516C Marine Propulsion Engine
- Power Range
- 1650-3386 bhp (1230-2525 bkW)
- Speed Range
- 1200-1800 rpm
- Emissions
- IMO II
-
3516C Propulsion Engine (Tier 3)
- Power Range
- 2131-2675 bhp (1590-1995 bkW)
- Speed Range
- 1600 rpm
- Emissions
- EPA Tier 3, IMO II
-
3516E
- Power Range
- 3755-4023 bhp (2800-3000 bkW)
- Speed Range
- 1800 rpm
- Emissions
- IMO II
-
3516E Marine Propulsion Engine (U.S. EPA Tier 4 Final)
- Power Range
- 2501-3386 bhp (1865-2525 bkW)
- Speed Range
- 1600 - 1800 rpm
- Emissions
- U.S. EPA Tier 4, IMO II, IMO III, IMO II/III switchable
-
3516E High Output
- Power Range
- 3151 - 4023 bhp (2350 - 3000 bkW)
- Speed Range
- 1800 rpm
- Emissions
- IMO II/ IMO III
-
3516E Marine Propulsion Engine (U.S. EPA Tier 4 Final)
- Power Range
- 2501-3386 bhp (1865-2525 bkW)
- Speed Range
- 1600-1800 rpm
- Emissions
- U.S. EPA Tier 4 Final, IMO III
-
C12 Propulsion Engine
- Power Range
- 340-490 bhp (254-366 bkW)
- Speed Range
- 1800-2300 rpm
- Emissions
- IMO II, U.S. EPA T3
-
Cat C18 ACERT Propulsion Engine (Tier 3)
- Power Range
- 454 - 1136 bhp (339 - 847 bkW)
- Speed Range
- 1500 - 2100 rpm
- Emissions
- U.S. EPA Tier 3 Commercial, IMO II, EU IWW, EU Stage V, China II
-
Cat C18 ACERT Propulsion Engine (IMO II)
- Power Range
- 454-715 bhp (339-533 bkW)
- Speed Range
- 1800-2100 rpm
- Emissions
- IMO II, EU IIIA
-
Cat C18 ACERT Propulsion Engine (Tier 3)
- Power Range
- 454 - 803 bhp
- Speed Range
- 1800 - 2100 rpm
- Emissions
- EPA Tier 3 Commercial, IMO II, EU IWW, China II
-
C280-12
- Power Range
- 4640 - 6035 bhp (3460-4500 bkW)
- Speed Range
- 900 - 1000 rpm
- Emissions
- IMO II, U.S. EPA Tier 4/IMO III (Cat SCR required)
-
C280-12 Marine Propulsion Engine (EPA Tier 4)
- Power Range
- 4962-5444 bhp (3700-4060 bkW)
- Speed Range
- 1000 rpm
- Emissions
- EPA Tier 4, IMO II
-
C280-12 Marine Propulsion Engine (EPA Tier 4)
- Power Range
- 4962-5444 bhp (3700-4060 bkW)
- Speed Range
- 1000 rpm
- Emissions
- EPA Tier 4, IMO II
-
C280-16 Commercial Marine Propulsion Engine
- Power Range
- 6169-8046 bhp (4600-6000 bkW)
- Speed Range
- 900-1000 rpm
- Emissions
- IMO II
-
C280-6 Propulsion Engine
- Power Range
- 2320-2722 bhp (1730-2030 bkW)
- Speed Range
- 900-1000 rpm
- Emissions
- IMO II
-
Cat C280-8 Propulsion Engine
- Power Range
- 3084-4023 bhp (2300-3000 bkW)
- Speed Range
- 900 - 1000 rpm
- Emissions
- IMO II, IMO III/EPA Tier 4
-
C280-8 Marine Propulsion Engine (U.S. EPA Tier 4)
- Power Range
- 3299-3634 bhp (2460-2530 bkW)
- Speed Range
- 1000 rpm
- Emissions
- EPA Tier 4, IMO III
-
Cat C32 ACERT Marine Propulsion Engine (EPA Tier 3)
- Power Range
- 660 - 1600 bhp (492 - 1193 bkW)
- Speed Range
- 1600 - 2300 rpm
- Emissions
- U.S. EPA Tier 3/ Tier 4, IMO II/III, EU Stage V
-
Cat C32 ACERT Marine Propulsion Engine (EPA Tier 3)
- Power Range
- 750-1800 bhp (559-1342 bkW)
- Speed Range
- 1600-2300 rpm
- Emissions
- EPA Tier 3, IMO II, EU IW
-
Cat C32 Propulsion Engine (US EPA Tier 3 / IMO II)
- Power Range
- 660-1600 bhp (492-1193 bkW)
- Emissions
- U.S. EPA Tier 3 / IMO II emissions certified
- Aspiration
- Turbocharged-aftercooled aspiration
-
Cat C32 Propulsion Engine (US EPA Tier 4 / IMO III)
- Minimum Length
- 83.90 in
- 6 Brick Z-Flow - Length
- 147.70 in
- Maximum Length
- 89.80 in
-
Cat C32B
- Power Range
- 1200 - 1700 bhp (895 - 1268 bkW)
- Speed Range
- 1600 - 2300 rpm
- Emissions
- IMO II, IMO II/III, U.S. EPA Tier 4
-
C7.1 Marine Propulsion Engine (U.S. EPA Tier 3 / IMO II)
- 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
-
C7.1 Marine Propulsion Engine (U.S. EPA Tier 3 / IMO II)
- Length
- 43.10 in
- Height
- 34.50 in
- Configuration
- In-line 6, 4-stroke-cycle diesel
-
C9.3 Commercial Propulsion Engine
- Power Range
- 375-476 bhp (280 - 355 bkW)
- Power Range
- 280 - 355
- Rated Engine Speed
- 1800 - 2300 rpm
-
C9.3 Commercial Propulsion Engine
- 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
-
High Performance 3516E
- Power Range
- 3151 - 4023 bhp (2350 - 3000 bkW)
- Speed Range
- 1800 rpm
- Emissions
- IMO II/ IMO III
High Performance Propulsion and Maneuvering Solutions
-
3512C High Displacement Propulsion Engine
- Power Range
- 1340-2366 bhp (1000-1765 bkW)
- Speed Range
- 1600-1800 rpm
- Emissions
- EPA Tier 3, IMO II
-
C12 High Performance Propulsion Engine
- Power Range
- 340 - 705 bhp (254 - 526 bkW)
- Speed Range
- 1800 - 2300 rpm
- Emissions
- IMO I, IMO II
-
C12 ACERT™ High Performance Propulsion Engine
- Power Range
- 340 - 705 bhp (254 - 526 bkW)
- Speed Range
- 1800 - 2300 rpm
- Emissions
- IMO I, IMO II
-
Cat C18 High Performance Propulsion Engine - Recreational
- Power Range
- 803 - 1136 bhp, 599 - 847 bkW
- Speed Range
- 2300 rpm
- Emissions
- EPA Tier 3, IMO II
-
Cat C18 High Performance Propulsion Engine
- 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
-
Cat C18 ACERT High Performance Propulsion Engine (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
-
Cat C18 ACERT High Performance Propulsion Engine (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
-
Cat C18 High Performance Propulsion Engine - Recreational
- Power Range
- 1015-1150 mhp, 1001-1136 bhp, 747-847 bkW
- Speed Range
- 2300 rpm
- Emissions
- EPA Tier 3, IMO II, EU IW
-
Cat C32 Marine Propulsion Engine High Performance Applications
- Power Range
- 1600-1900 bhp (1193-1417 bkW)
- Speed Range
- 2300 rpm
- Emissions
- IMO II, U.S. EPA Tier 3 Recreational, RCD, China Stage II
-
Cat C32 ACERT High Performance Marine Propulsion Engine (Tier 3 Rec)
- Power Range
- 1600-1900 bhp (1193-1417 bkW)
- Speed Range
- 2300 rpm
- Emissions
- EPA Tier 3, IMO II, EU IW
-
C32B
- Power Range
- 2000 bhp (1491 bkW)
- Speed Range
- 2300 rpm
- Emissions
- IMO II, U.S. EPA Tier 3 Recreational, RCD, China Stage II
-
C32B
- Power Range
- 1800-2400 bhp (1342-1790 bkW)
- Speed Range
- 2300 rpm
- Emissions
- IMO II/III, U.S. EPA Tier 3 (recreational), RCD, China II
-
C32B
- Power Range
- 1800-2400 bhp (1342-1790 bkW)
- Speed Range
- 2300 rpm
- Emissions
- IMO II/III, U.S. EPA Tier 3 (recreational), RCD, China II
-
C32B Tier 3 Recreational
- Power Range
- 2000 bhp (1491 bkW)
- Speed Range
- 2300 rpm
- Emissions
- EPA Tier 3, IMO II
-
C32B
- Power Range
- 2000 bhp (1491 bkW)
- Speed Range
- 2300 rpm
- Emissions
- IMO II, U.S. EPA Tier 3 Recreational, RCD, China Stage II
-
C7.1 High Performance Propulsion Engine
- Power Range
- 400 - 500 bhp (298 - 373 bkW)
- Length - Engine
- 43.10 in
- Engine Dry Weight - Approximate
- 1,676 lb
Marine Generator Sets
-
3512C High Displacement Marine Generator Set
- Minimum Rating
- 1550 eKW (1937 kVA)
- Maximum Rating
- 1700 eKW (2125 kVA)
- Frequency
- 60 hz
-
C1.5 Marine Generator Set Engine
- Minimum Rating
- 10 ekW (10 kVA)
- Maximum Rating
- 12 ekW (12 kVA)
- Frequency
- 50 / 60
-
C18 Marine Generator Set
- Minimum Rating
- 260 ekW (325 kVA)
- Maximum Rating
- 565 ekW (706 kVA)
- Frequency
- 50 / 60
-
C18 (SRMP) Marine Generator Set
- Minimum Rating
- 260 ekW (325 kVA)
- Maximum Rating
- 565 ekW (706 kVA)
- Frequency
- 50 hz
-
C18 Marine Generator Set
- Minimum Rating
- 260 ekW (325 kVA)
- Maximum Rating
- 565 ekW (706 kVA)
- Frequency
- 50 hz
-
Cat C2.2 Marine Generator Set
- Minimum Rating
- 15 ekW (15 kVA)
- Maximum Rating
- 25 ekW (25 kVA)
- Frequency
- 50 / 60
-
Cat C2.2B Marine Generator Set
- Power Range
- 16 - 26 ekW
- Frequency
- 50 / 60
- Emissions
- U.S. EPA Tier 3
-
Cat C280-12 Marine Generator Set
- Minimum Rating
- 3520 ekW (4400 kVA)
- Maximum Rating
- 3640 ekW (4550 kVA)
- Frequency
- 50 / 60 Hz
-
Cat C280-16 Marine Generator Set
- Minimum Rating
- 4700 ekW (5875 kVA)
- Maximum Rating
- 4840 ekW (6050 kVA)
- Frequency
- 50 / 60
-
Cat C280-6 Marine Generator Set
- Minimum Rating
- 1760 ekW (2200 kVA)
- Maximum Rating
- 1820 ekW (2275 kVA)
- Frequency
- 50 / 60 Hz
-
Cat C280-8 Marine Generator Set
- Minimum Rating
- 2200 ekW (2938 kVA)
- Maximum Rating
- 2600 ekW (3025 kVA)
- Frequency
- 50 / 60
-
Cat C32 Generator Set
- Power Range
- 550 - 940 ekW
- Frequency
- 50 / 60
- Emissions/Fuel Strategy
- EPA Tier 4, IMO II/IMO III Switchable, EU Stage V
-
Cat C32 ACERT Generator Set (IMO II)
- Minimum Rating
- 550 eKW (688 kVA)
- Maximum Rating
- 940 ekW (1175 kVA)
- Frequency
- 50 Hz or 60 Hz
-
Cat C32 ACERT Generator Set (EPA Tier 3)
- Minimum Rating
- 730 ekW (913 kVA)
- Maximum Rating
- 940 ekW (1175 kVA)
- Frequency
- 60hz
-
Cat C32 Generator Set (IMO III)
- Minimum Rating
- 219 ekW
- Maximum Rating
- 940 ekW
- Frequency
- 60hz
-
Cat C32 Generator Set (US EPA Tier 3 / IMO II)
- Minimum Rating
- 219 ekW
- Maximum Rating
- 940 ekW
- Frequency
- 60hz
-
Cat C32 Generator Set (US EPA Tier 4 / IMO III)
- Minimum Rating
- 282 ekW
- Maximum Rating
- 940 ekW
- Frequency
- 60hz
-
Cat® C4.4 Marine Generator Set
- Minimum Rating
- 36.0R ekW (45 kVA)
- Maximum Rating
- 99.0 ekW (123 kVA)
- Frequency
- 50 / 60
-
C4.4 (Electronic Control System)
- Power Range
- 58.0R - 118 ekW
- Emissions
- U.S. EPA Tier 3, EU Stage V
- Configuration
- In-line 4, 4-stroke-cycle diesel
-
C7.1
- Power Range
- 100 - 200 ekW
- Frequency
- 50 / 60
- Emissions
- IMO II, IMO III (SCR required) U.S. EPA Tier 3, EU Stage V, China II
-
Cat C7.1 Generator Set
- Minimum Rating
- 100 ekW (125 kVA)
- Maximum Rating
- 200 ekW (250 kVA)
- Frequency
- 50 Hz or 60 Hz
-
C7.1 (Electronic Control System)
- Speed
- 1500 rpm / 1800 rpm
- Frequency
- 50 / 60
- Emissions
- IMO II, IMO III (SCR required) U.S. EPA Tier 3, EU Stage V, China II
-
C9.3
- Power Range
- 200 - 300 ekW
- Frequency
- 50 / 60
- Emissions/Fuel Strategy
- IMO II, IMO III, U.S. EPA Tier 3, China II
-
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 / 60
Auxiliary Engines
-
3512E Marine Auxiliary/DEP Engine (U.S. EPA Tier 4 Final)
- Aspiration
- Turbocharged - Aftercooled
- Power Range
- 1263 - 1789 bkW
- Emissions
- U.S. EPA Tier 4, IMO II/III
-
3516E Marine Auxiliary Engine (U.S. EPA Tier 4 Final)
- Aspiration
- Turbocharged - Aspirator
- Power Range
- 1921 - 2368 bkW
- Emissions
- U.S. EPA Tier 4, IMO II/III
-
Cat C18 Auxiliary/Generator Set Engine
- Power Range
- 404 - 803 hp
- Emissions
- IMO II/III, EPA T 3, EU IWW, EU Stage V, China II
- Minimum Rating
- 404 BHP
-
Cat C18 Auxiliary/Generator Set Engine (EPA Tier 3)
- Minimum Rating
- 624 BHP
- Maximum Rating
- 803 BHP
- Aspiration
- TA, TTA
-
Cat C280 Marine Auxiliary Engines
- Minimum Rating
- 2,320 BHP
- Maximum Rating
- 7,268 BHP
- Aspiration
- Turbocharged - Aspirator
-
Cat C32 Auxiliary / Diesel Electric Propulsion Engine (IMO III)
- Minimum Rating
- 1,047 BHP
- Maximum Rating
- 1,332 BHP
- Aspiration
- Turbocharged - Aftercooled
-
Cat C32 Auxiliary/Generator Set Engine
- Power Range
- 791-1333
- Rated Engine Speed
- 1500 / 1800
- Emissions
- IMO II, IMO III, U.S. Tier 4, EU Stage V, China II
-
Cat C32 Auxiliary / Diesel Electric Propulsion Engine (IMO III)
- Minimum Rating
- 1,047 BHP
- Maximum Rating
- 1,332 BHP
- Aspiration
- Turbocharged-aftercooled
-
Cat C32 Auxiliary/Generator Set Engine (EPA Tier 3)
- Minimum Rating
- 1,047 BHP
- Maximum Rating
- 1,333 BHP
- Aspiration
- TTA
-
Cat C32 Auxiliary / Diesel Electric Propulsion (US EPA Tier 3 / IMO II)
- Minimum Rating
- 314 BHP
- Maximum Rating
- 1,333 BHP
- Aspiration
- Turbocharged-aftercooled aspiration
-
Cat C32 Auxiliary / Diesel Electric Propulsion Engine (US EPA Tier 4 / IMO III)
- Minimum Rating
- 400 BHP
- Maximum Rating
- 1,333 BHP
- Aspiration
- Turbocharged-aftercooled
-
C4.4 (Electronic Control System)
- Length
- 33.70 in
- Power Range
- 71 - 129 bkW
- Height
- 40.90 in
-
C7.1 (Electronic)
- Power Range
- 109 - 218 bkW
- Length
- 43.10 in
- Height
- 34.50 in
-
C7.1 Marine Auxiliary Engine (U.S. EPA Tier 3 / IMO II)
- Length
- 43.10 in
- Power Range
- 208 bkW (280 bhp) @ 2300 rpm
- Height
- 34.50 in
-
C9.3 Marine Auxiliary Engine
- Minimum Rating
- 292 BHP
- Maximum Rating
- 436 BHP
- Aspiration
- Turbocharged - Aftercooled
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