New | 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.

ModelPower RangeAspirationEmissions
3512E Tier 4 Aux Engine732-2399 bhp (546-1789 bkW)TAU.S. EPA Tier 4 Final, IMO IIIVIEW
3516E Tier 4 Aux Engine787-3175 bhp (587-2368 bkW)TAU.S. EPA Tier 4 Final, IMO IIIVIEW
ModelMinimum RatingMaximum RatingAspiration
C18 IMO II404 BHP660 BHPTA, TTAVIEW
C18 Tier 3624 BHP803 BHPTA, TTAVIEW
C2802320 BHP7268 BHPTAVIEW
C32 IMO II791 BHP1333 BHPTTAVIEW
C32 IMO III1047 BHP1332 BHPTurbocharged-aftercooledVIEW
C32 Tier 31047 BHP1333 BHPTTAVIEW
C32 Tier 3-IMO II314 BHP1333 BHPTurbocharged-aftercooled aspirationVIEW
C32 Tier 4 / IMO III400 BHP1333 BHPTurbocharged-aftercooledVIEW
ModelLengthPower RangeConfiguration
C7.1 Tier 3 / IMO II Auxiliary Engine43.1 in208 bkW (280 bhp) @ 2300 rpmIn-line 6, 4-stroke-cycle dieselVIEW
ModelMinimum RatingMaximum RatingAspiration
C9.3 Auxiliary Engine292 BHP436 BHPTAVIEW

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.

ModelPower RangeSpeed RangeEmissions
3508C775-1100 bhp (578-820 bkW)1200-1600 rpmIMO II, EU IWVIEW
3512C IMO II1280-2551 bhp (955-1902 bkW)1200 rpm, 1600 rpm, 1800 rpmIMO II, EU IWVIEW
3512C Tier 31340-2366 bhp (1000-1765 bkW)1600-1800 rpmEPA Tier 3, IMO IIVIEW
3512E Tier 41341-2549 bhp (1000-1901 bkW)1600-1800 rpmU.S. EPA Tier 4 Final, IMO IIIVIEW
3516C IMO II1650-3386 bhp (1230-2525 bkW)1200-1800 rpmIMO IIVIEW
3516C Tier 32131-2675 bhp (1590-1995 bkW)1600 rpmEPA Tier 3, IMO IIVIEW
3516E Tier 42501-3386 bhp (1865-2525 bkW)1600-1800 rpmU.S. EPA Tier 4 Final, IMO IIIVIEW
C12340-490 bhp (254-366 bkW)1800-2300 rpmIMO I, IMO IIVIEW
C175-162683-3420 bhp (2001-2550 bkW)1600-1800 rpmIMO IIVIEW
C18 ACERT IMO II454-715 bhp (339-533 bkW)1800-2100 rpmIMO II, EU IIIAVIEW
C18 ACERT Tier 3469-1001 bhp (350-747 bkW)1800-2300 rpmEPA Tier 3 Commercial, IMO II, EU IWVIEW
C280-124640-5096 bhp (3460-3800 bkW)900 rpmIMO IIVIEW
C280-12 Tier 44962-5444 bhp (3700-4060 bkW)1000 rpmEPA Tier 4, IMO IIVIEW
C280-166169-7577 bhp (4600-5650 bkW)900-1000 rpmIMO IIVIEW
C280-62320-2722 bhp (1730-2030 bkW)900-1000 rpmIMO IIVIEW
C280-83084-3393 bhp (2300-2530 bkW)900 rpmIMO IIVIEW
C280-8 Tier 43299-3634 bhp (2460-2530 bkW)1000 rpmEPA Tier 4, IMO IIIVIEW
C32 ACERT IMO II660-1450 bhp (492-1081 bkW)1600-2300 rpmIMO II, EU IWVIEW
C32 ACERT Tier 3750-1800 bhp (559-1342 bkW)1600-2300 rpmEPA Tier 3, IMO II, EU IWVIEW
ModelPower RangeEmissionsAspiration
C32 Tier 3 / IMO II61-1450 bhp (46-1072 bkW)U.S. EPA Tier 3 / IMO II emissions certifiedTurbocharged-aftercooled aspirationVIEW
Model6 Brick Z-Flow - LengthMinimum Length6 Brick Z-Flow - Height
C32 Tier 4 / IMO III147.7 in83.9 in23.5 inVIEW
ModelLengthHeightMinimum Width
C7.1 Tier 3 / IMO II Propulsion Engine43.1 in35.1 in31.4 inVIEW
ModelPower RangeSpeed RangeEmissions
C9.3 Commercial Propulsion Engine375-476 bhp (280-355 bkW)1800-2300 rpmEPA Tier 3 Commercial, IMO II, EU IWVIEW
M 20 C1020-1800 kW900-1000 rpmIMO II / IMO III with SCRVIEW
M 25 C1740-3000 kW720-750 rpmIMO IIVIEW
M 25 E Propulsion Engine2100-3150 kW720-750 rpmIMO II / IMO III with SCRVIEW
M 32 C2880-4500 kW600 rpmIMO IIVIEW
M 32 E Propulsion3300 - 4950 kW720-750 rpmIMO II / IMO III with SCRVIEW
M 34 DF Propulsion Engine3060-4770 bkW720 / 750 rpmIMO IIVIEW
M 43 C6000 - 9450 kW500-514 rpmIMO IIVIEW
M 46 DF5400 - 8685 kW500 / 514 rpmIMO II in diesel mode / IMO III in gas modeVIEW
VM 32 C6000-8000 kW720-750 rpmIMO IIVIEW
VM 32 E Propulsion6360 - 8960 kW720/750 rpmIMO IIVIEW
VM 43 C12000 - 16800 kW500-514 rpmIMO IIVIEW
VM 46 DF Propulsion10800 - 15440 kW500 / 514 rpmIMO II in diesel mode / IMO III in gas modeVIEW

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.

ModelPower RangeSpeed RangeEmissions
3512C HD1340-2366 bhp (1000-1765 bkW)1600-1800 rpmEPA Tier 3, IMO IIVIEW
C12578-609 mhp (570-600 bhp)2300 rpmIMO IVIEW
C12 ACERT660-705 bhp (492-526 bkW)2300 rpmIMO IIVIEW
C12.9 High Performance Propulsion Engine850-1000 mhp, 838-985 bhp, 625-735 bkW2300 rpmEPA Tier 3, IMO II, EU Stage IIIAVIEW
C18 ACERT Tier 3814-1015 mhp, 803-1001 bhp, 599-747 bkW2100-2300 rpmEPA Tier 3, IMO II, EU Stage IIIAVIEW
C18 ACERT Tier 3 Recreational1015-1150 mhp, 1001-1136 bhp, 747-847 bkW2300 rpmEPA Tier 3, IMO II, EU IWVIEW
C32 ACERT Tier 3 Recreational1600-1900 bhp (1193-1417 bkW)2300 rpmEPA Tier 3, IMO II, EU IWVIEW
ModelPower RangeRotation From Flywheel EndSpeed Range
C7.1 Propulsion Engine298 bkW - 373 bkW (400 bhp - 500 bhp)Counterclockwise2900 rpmVIEW
ModelPower RangeSpeed RangeStroke
C8.7 Propulsion Engine641 BHP2300 rpm5.3 inVIEW
ModelPower RangeSpeed RangeEmissions
C9 ACERT503-567 bhp (375-423 bkW)2500 rpmIMO IIVIEW

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

ModelMinimum RatingMaximum RatingFrequency
3512C1550 eKW (1937 kVA)1700 eKW (2125 kVA)60 hzVIEW
C1.5 (Single Phase)10 ekW (10 kVA)13 ekW (16.5 kVA)50 Hz or 60 HzVIEW
C18 (SRMP)260 ekW (325 kVA)565 ekW (706 kVA)50 hzVIEW
C2.2 (Single Phase)16 ekW (16kVA)27 ekW (27 kVA)50 Hz or 60 HzVIEW
C280-123520 ekW (4400 kVA)3640 ekW (4550 kVA)50 Hz or 60 HzVIEW
C280-164700 ekW (5875 kVA)4840 ekW (6050 kVA)50 Hz or 60 HzVIEW
C280-61760 ekW (2200 kVA)1820 ekW (2275 kVA)50 Hz or 60 HzVIEW
C280-82350 ekW (2938 kVA)2420 ekW (3025 kVA)50 Hz or 60 HzVIEW
C32 ACERT IMO II550 eKW (688 kVA)940 ekW (1175 kVA)50 Hz or 60 HzVIEW
C32 ACERT Tier 3730 ekW (913 kVA)940 ekW (1175 kVA)60hzVIEW
C32 IMO III219 ekW940 ekW60hzVIEW
C32 Tier 3-IMO II219 ekW940 ekW60hzVIEW
C32 Tier 4 / IMO III282 ekW940 ekW60hzVIEW
C4.436.0R ekW (45 kVA)99.0 ekW (123 kVA)50 Hz or 60 HzVIEW
C4.4 ACERT58R ekW (50 Hz), 51R ekW (60 Hz)88R ekW (50 Hz), 105R ekW (60 Hz)50 Hz or 60 HzVIEW
C7.1100 ekW (125 kVA)200 ekW (250 kVA)50 Hz or 60 HzVIEW
C9.3 Generator Set185R ekW (231 kVA) at 50hz, 224R ekW (280 kVA) at 60hz250R ekW (313 kVA) at 50hz, 300 ekW (375 kVA) at 60hz50 Hertz & 60 HertzVIEW
ModelMinimum RatingMaximum RatingConfiguration
M 20 C979 kWe (1224 kVA)1726 kWe (2160 kVA)6,8,9 CylinderVIEW
M 25 C1669 kWe (2088 kVA)2877 kWe (3600 kVA)6,8,9 CylinderVIEW
M 25 E Generator Set2016 kWe (2625 kVA)3024 kWe (3938 kVA)6,8,9 CylinderVIEW
M 32 C2762 kWe (3456 kVA)4316 kWe (5400 kVA)6,8,9 CylinderVIEW
ModelMinimum RatingMaximum RatingBore
M 32 E Generator Set3165 kWe (3960 kVA)5747 kWe (5940 kVA)12.6 inVIEW
ModelMinimum RatingMaximum RatingConfiguration
M 34 DF Generator Set2934 kWe (3672 kVA)4574 kWe (5724 kVA)6,8,9 CylinderVIEW
M 43 C5754 kWe (7200 kVA)9063 kWe (11340 kVA)6,7,8,9 CylinderVIEW
ModelMinimum RatingMaximum RatingBore
M 46 DF Generator Set5179 kWe (6480 kVA)8329 kWe (10422 kVA)16.93 inVIEW
ModelMinimum RatingMaximum RatingConfiguration
VM 32 C5754 kWe (7200 kVA)7672 kWe (9600 kVA)12,16 CylinderVIEW
VM 32 E Generator Set6099 kWe (7632 kVA)8593 kWe (10752 kVA)12,16 CylinderVIEW
VM 43 C11508 kWe (14400 kVA)16111 kWe (20160 kVA)12,16 CylinderVIEW
VM 46 DF Generator Set10357 kWe (12960 kVA)14807 kWe (18528 kVA)12,16 CylinderVIEW

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"
With only a few days notice, we were able to get the emergency system working properly. Hawthorne Cat provided great leadership and excellent field support.
Mark Cripe
Helix Electric
"

San Diego - Power
Kyle Farmer
Engine Business Manager
858.376.6821 office
760.715.9565 mobile
kfarmer@hawthornecat.com

Tim Roberts
Product Support
General Manager
858.376.6820 office
858.583.8460 mobile
troberts@hawthornecat.com

Mark Reza
Used Engine Sales Manager
858.376.6840 office
858.688.0076 mobile
mreza@hawthornecat.com

Jeff Reid
Service Manager
858.376.6890 office
858.472.1852 mobile
jreid@hawthornecat.com

Hawaii – Power
Cliff Yuen
Director of Sales & Rentals
808.676.0322 office
808.349.7767 mobile
cyuen@hawthornecat.com

Guam – Power
Myver Hecita
Power Systems Rental &
Sales Representative
671.649.4241 office
671.898.2740 mobile
mhecita@hawthornecat.com