Rated Power: 209 HP @ 2300 RPM
Engine Type:I-6, 4-Stroke-Cycle-Diesel
Aspiration: Turbocharged-Aftercooled
Bore x Strock: 105 mm x 135 mm
Emission Standard: IMO II
CAT Marine Main Engine
Marine Main Engine is the power system for marine commercial propulsion engines. Caterpillar Marine Main Engine has C7.1, C8.7, C9.3, C18, C32, C175, C280, 3512, 3516C (all series names are written here), the engine power range is from 209 kVA to 5650 kVA.
All marine main engine engines comply with international emission standards, providing stable power supply for various types of ships such as work boats, tugboats, yachts, patrol boats, fire boats, etc. Carter marine power products are designed with great emphasis on reliability, stability and safety, etc. Performance, in line with international strict classification society certification standards, such as EPA, IMO, etc.
Caterpillar Marine Main Engine Performance, long-term durability, high fuel efficiency, simplified maintenance, and long overhaul intervals, Cat® Marine Engines deliver maximum productivity with minimal outlay.
For more details on our products and services, please contact the EMAC (Official Caterpillar Export Agent) sales and service team.
Advantages of Marine Main Engine
A 10 percent overload capability is available for a period of one hour within a 12 hour period of operation. Total operating time at the 10 percent overload power shall not exceed 25 hours per year. This power rating conforms to ISO 8528 guidelines.
Based on DCEC marine engines, Seamac provides fully integrated support at all stages of a new build or repower project, from vessel concept to installation, commissioning and sea trial. We work closely with partner suppliers, including gear manufacturers and system integrators to ensure proper engine selection, application and installation. Seamac, your reliable one-stop marine propulsion and power system solution provider.
Find Marine Main Engines by Series
This is the list of all series of CAT marine main engines.
C7.1
Rated Power: 261 HP @ 2500 RPM Rated Power: 298 HP @ 2600 RPM Rated Power: 317 HP @ 2700 RPM Caterpillar C7.1-ME350 Marine Main Engine
Engine Type: I-6, 4-Troke-Cycle-Diesel
Bore x Strock: 105 mm x 135 mm
Aspiration: Turbocharged-Aftercooled
Emission Standard: IMO II Caterpillar C7.1-ME400 Marine Main Engine
Engine Type: I-6, 4-Troke-Cycle-Diesel
Bore x Strock: 105 mm x 135 mm
Aspiration: Turbocharged-Aftercooled
Emission Standard: IMO II Caterpillar C7.1-ME425 Marine Main Engine
Engine Type: I-6, 4-Troke-Cycle-Diesel
Bore x Strock: 105 mm x 135 mm
Aspiration: Turbocharged-Aftercooled
Emission Standard: IMO II
C8.7
EMAC’s customer interview video of 2024, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer’s company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly help customers relieve their worries, and build their confidence to cooperate with EMAC. EMAC’s customer interview video of 2025, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer’s company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly help customers relieve their worries, and build their confidence to cooperate with EMAC. EMAC’s customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer’s company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly help customers relieve their worries, and build their confidence to cooperate with EMAC. EMAC’s customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer’s company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly help customers relieve their worries, and build their confidence to cooperate with EMAC. CAT Well Service The Well Service engine is the... CAT Offshore The Offshore engine is the power... CAT Land Production Engine The Land Production... CAT Land Driling Engine The Land Driling engine... Caterpillar 3516 Railway Engine To meet your... Caterpillar 3512 Railway Engine To meet your... Caterpillar 3508 Railway Engine To meet your... Caterpillar C175 Railway Engine Optimized design... Caterpillar C27 Railway Engine Cooling system... Caterpillar C18 Railway Engine The superior... Caterpillar C15 Railway Engine Air intake system... CAT Gas Compressor A gas compressor is a device... CAT Fire Pump Engine The fire pump engine is the... CAT Explosion Proof Engine Carter engines are... EMAC’s customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer’s company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview videos can help all of other customers get to know more about EMAC, our true customer interview case can greatly help customers relieve their worries, and build their confidence to cooperate with EMAC. EMAC’s customer interview video of 2023, EMAC finished a series of customer interview with 10 different business partners from different countries and regions, most of videos are took at customer’s company and factory, collecting all reviews and evaluations of EMAC, covering different industries in different country and regions, we believe this series of EMAC customer interview CAT 3516 Pump Drive Engine Series The... CAT 3512 Pump Drive Engine Series The... Caterpillar 3508 Pump Drive Engine The... Caterpillar 3412 Pump Drive Engine The... Caterpillar 3406 Pump Drive Engine Series The... Caterpillar C18 Pump Drive Engine Series The... Caterpillar 3516 Industrial Engine Caterpillar... Caterpillar 3512 Industrial Engine Caterpillar... Caterpillar 3508 Industrial Engine Caterpillar... Caterpillar C32 Industrial Engine Caterpillar 32... Caterpillar C27 Industrial Engine Caterpillar 27... Caterpillar C18 Industrial Engine Caterpillar 18... Caterpillar C15 Industrial Engine Caterpillar 15... Caterpillar C13 Industrial Engine Caterpillar 13... Caterpillar C9.3 Industrial Engine Caterpillar... Caterpillar C7.1 Industrial Engine Caterpillar... Caterpillar C7 Industrial Engine Caterpillar 7... Caterpillar C4.4 Industrial Engine Caterpillar... Caterpillar C2.2 Industrial Engine Caterpillar... CAT Marine Auxiliary Engine Caterpillar marine... Caterpillar 3512 Marine Auxiliary Engine The... Caterpillar C280 Marine Auxiliary Engine The... Caterpillar C32 Marine Auxiliary Engine The... Caterpillar C18 Marine Auxiliary Engine The... Caterpillar C9.3 Marine Auxiliary Engine The... Caterpillar C7.1 Marine Auxiliary Engine The... Caterpillar C4.4 Marine Auxiliary Engine The... Caterpillar 3516C Marine Main Engine The Carter... Caterpillar 3512 Marine Main Engine The... Caterpillar C280 Marine Main Engine Caterpillar... Caterpillar C175 Marine Main Engine Caterpillar... Caterpillar C32 Marine Main Engine The Carter... Caterpillar C18 Marine Main Engine The C18 ACERT... Caterpillar C9.3 Marine Main Engine The... Caterpillar C8.7 Marine Main Engine The... Caterpillar recently announced the launch of a new educational program called “Pathways to Sustainability” to help customers in the mining, quarrying and aggregate industries on their energy transition journey. The four-year program will provide participants with comprehensive and diverse learning opportunities, energy transition project recommendations and other resources related to sustainable product acquisition. Caterpillar C7.1 Marine Main Engine The... If a high-tech manufacturing factory encounters a power outage during the production process, production will be suspended. At the same time, the production equipment and precision instruments used will not be able to operate normally due to a sudden power outage. Therefore, reliable and stable backup power can ensure factory production and ensure the normal operation of production equipment, achieving efficient operations around the clock.Caterpillar is taking action to achieve its own sustainability goals and help customers create a low-carbon future through products, technologies and services. Caterpillar Chairman and CEO An Bojun gave a concise summary of Caterpillar’s sustainable development actions: “Sustainable development is Caterpillar’s commitment to building a better world. We are practicing our commitment to low-income countries in a variety of ways. Carbon Future’s commitment to help customers achieve climate-related goals and help customers build a better, more sustainable world… Understand how the engine responds to fuel, load, environmental conditions and other factors and adjust maintenance accordingly.For gas engine generator sets, the most valuable commodity is time, specifically uptime to generate power and revenue. Therefore, the goal of engine maintenance is to achieve the highest possible uptime. In essence, high uptime spreads capital and operating costs over more kilowatt hours, reducing the key variable of cost per kilowatt hour. Replacement parts, fluids, supplies and labor costs are important, but uptime is even more important. Unplanned downtime, especially major breakdowns and long-term repairs, therefore of course need to be avoided. Additionally, this means that planned downtime must be kept to a minimum appropriate for the type of application. Maintenance according to manual requirements based on the engine owner’s manual, as opposed to maintenance according to perception, is not the key to achieving optimal uptime. Instead, the key is to apply best practices for optimal maintenance intervals and to integrate as many service tasks as possible into such scheduled maintenance work. The way to do this lies in trend analysis – understanding how the engine responds to fuel, load, environmental conditions and other factors, and adjusting maintenance efforts accordingly. The batteries Caterpillar designed for these devices are also suitable for other industrial applications. These batteries can be designed to scale with industry and customer demands for battery performance, maximizing sustainability throughout their lifecycle and being recycled and reused at the end of their life. Vietnam | Pump – Electric Motor
A Promise is A Promise, EMAC always do what we say, and for customer’s feedback, also 100% original from clients’s real words. EMAC, a Chinese company that you can trust! Indonesia | Construction – Customer Interview
A Promise is A Promise, EMAC always do what we say, and for customer’s feedback, also 100% original from clients’s real words. EMAC, a Chinese company that you can trust! Thailand | Pump – Equipment Production
A Promise is A Promise, EMAC always do what we say, and for customer’s feedback, also 100% original from clients’s real words. EMAC, a Chinese company that you can trust! Malaysia | Construction – Ground Support Equipment
A Promise is A Promise, EMAC always do what we say, and for customer’s feedback, also 100% original from clients’s real words. EMAC, a Chinese company that you can trust! Well Service | 153 – 2461 kW
Offshore | 1257 – 2418 kW
Land Production | 168 – 709 kW
Land Driling | 328 – 1383 kW
3516 | 1011 – 1492 kW
3512 | 761 – 1119 kW
3508 | 507 – 746 kW
C175
C27
C18
C15 | 328 – 444 kW
Gas Compressor | 205 – 2823 kW
Fire Pump Engine | 455 – 597 kW
Explosion Proof Engine | 400 – 828 kW
Indonesia | Marine – Indonesia Shipyard Interview
Thailand | Pump – Thailand Engineering Company Interview
3516 | 1480 kW
3512 | 1193 kW
3508 | 746 kW
3412 | 551 kW
3406 | 359 kW
C18 | 597 kW
3516 | 2000 HP
3512 | 1500 HP
3508 | 1000 HP
C32 | 1350 HP
C27 | 1150 HP
C18 | 800 HP
C15 | 595 HP
C13 | 520 HP
C9.3 | 416 HP
C7.1 | 217 – 275 HP
C7 | 255 HP
C4.4 | 83 – 111 HP
C2.2 | 66 HP
3516 | 2368 HP
3512 | 1424 – 1789 HP
C280 | 2530 – 3800 HP
C32 | 874 HP
C18 | 301 – 492 HP
C9.3 | 218 – 270 HP
C7.1 | 209 HP
C4.4 | 71 – 108 HP
3516C | 1230 – 2525 HP
3512 | 1044 – 1901 HP
C280 | 2214 – 2710 HP
C175 | 2428 – 2550 HP
C32 | 492 – 746 HP
C18 | 454 – 600 HP
C9.3 | 375 – 476 HP
C8.7 | 478 HP
Caterpillar has a New Plan to Help Customers With Energy Transformation!
C7.1 | 209 – 317 HP
Caterpillar Supports The World’s Largest Coal-bed Methane Power generation Project
Build Field And Engine Specific Maintenance Based On Trend Analysis
Advanced Power Solutions Help Reduce Carbon Emissions
C9.3
Rated Power: 280 HP @ 1800 RPM Rated Power: 310 HP @ 2100 RPM Rated Power: 355 HP @ 2300 RPM Caterpillar C9.3-ME375 Marine Main Engine
Engine Type: I-6, 4-Stroke-Cycle-Diesel
Bore x Strock: 115 mm x 149 mm
Aspiration: Turbocharged-Aftercooled
Emission Standard: IMO II Caterpillar C9.3-ME416 Marine Main Engine
Engine Type: I-6, 4-Stroke-Cycle-Diesel
Bore x Strock: 115 mm x 149 mm
Aspiration: Turbocharged-Aftercooled
Emission Standard: IMO II Caterpillar C9.3-ME476 Marine Main Engine
Engine Type: I-6, 4-Stroke-Cycle-Diesel
Bore x Strock: 115 mm x 149 mm
Aspiration: Turbocharged-Aftercooled
Emission Standard: IMO II
C18
Rated Power: 339 HP @ 1800 RPM Rated Power: 357 HP @ 1800 RPM Rated Power: 448 HP @ 1800 RPM Caterpillar C18-454 Marine Main Engine
Engine Type: I-6, 4-Troke-Cycle-Diesel
Bore x Strock: 145 mm x 183 mm
Aspiration:TC & aftercooled aspiration
Emission Standard: IMO II Caterpillar C18-479 Marine Main Engine
Engine Type: I-6, 4-Troke-Cycle-Diesel
Bore x Strock: 145 mm x 183 mm
Aspiration:TC & aftercooled aspiration
Emission Standard: IMO II Caterpillar C18-600 Marine Main Engine
Engine Type: I-6, 4-Troke-Cycle-Diesel
Bore x Strock: 145 mm x 183 mm
Aspiration:TC & aftercooled aspiration
Emission Standard: IMO II
C32
Rated Power: 492 HP @ 1800 RPM Rated Power: 559 HP @ 1800 RPM Rated Power: 634 HP @ 1800 RPM Rated Power: 746 HP @ 1800 RPM Rated Power: 634 bkW @ 1800 RPM Caterpillar C32-660 Marine Main Engine
Engine Type:Vee 12,4-Stroke-Cycle Diesel
Bore x Strock: 145 mm x 162 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II Caterpillar C32-750 Marine Main Engine
Engine Type:Vee 12,4-Stroke-Cycle Diesel
Bore x Strock: 145 mm x 162 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II Caterpillar C32-850 Marine Main Engine
Engine Type:Vee 12,4-Stroke-Cycle Diesel
Bore x Strock: 145 mm x 162 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II Caterpillar C32-1000 Marine Main Engine
Engine Type:Vee 12,4-Stroke-Cycle Diesel
Bore x Strock: 145 mm x 162 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO III Caterpillar C32-1000-1 Marine Main Engine
Engine Type:Vee 12,4-Stroke-Cycle Diesel
Bore x Strock: 145 mm x 162 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO Ⅲ
C175
Rated Power: 2428 HP @ 1800 RPM Rated Power: 2239 HP @ 1800 RPM Rated Power: 2550 HP @ 1800 RPM C175-16-3302 Marine Main Engine
Engine Type:Vee 16,4-Stroke-Cycle Diesel
Bore x Strock: 175 mm x 220 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II C175-16-3045 Marine Main Engine
Engine Type:Vee 16,4-Stroke-Cycle Diesel
Bore x Strock: 175 mm x 220 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II C175-16-3468 Marine Main Engine
Engine Type:Vee 16,4-Stroke-Cycle Diesel
Bore x Strock: 175 mm x 220 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II
C280
Rated Power: 2460 bkW @ 1000 RPM Rated Power: 2710 bkW @ 1000 RPM Rated Power: 3700 bkW @ 1000 RPM Rated Power: 4060 bkW @ 1000 RPM Caterpillar C280-8-3299 Marine Main Engine
Engine Type:Vee 8,4-Stroke-Cycle Diesel
Bore x Strock: 280 mm x 300 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II Caterpillar C280-8-3634 Marine Main Engine
Engine Type:Vee 8,4-Stroke-Cycle Diesel
Bore x Strock: 280 mm x 300 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II C280-12-4962 Marine Main Engine
Engine Type:Vee 8,4-Stroke-Cycle Diesel
Bore x Strock: 280 mm x 300 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II C280-12-5444 Marine Main Engine
Engine Type:Vee 8,4-Stroke-Cycle Diesel
Bore x Strock: 280 mm x 300 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II
3512
Rated Power:1044 HP 1600 @ RPM Rated Power: 1118 HP 1600 @ RPM Rated Power:1118 HP 1600 @ RPM Rated Power:1901 HP 1800 @ RPM 3512C-SS-ME1400 Marine Main Engine
Engine Type :V-12, 4-Stroke-Cycle-Diesel
Bore x Strock :170.0 mm * 190.0 mm
Displacement :51.8 L (3161 cu in)
Emission Standard : IMO II 3512C-SS-ME1500 Marine Main Engine
Engine Type:V-12, 4-Stroke-Cycle-Diesel
Bore x Strock:170.0 mm * 190.0 mm
Displacement :51.8 L (3161 cu in)
Emission Standard: IMO II 3512C-SS-ME1600 Marine Main Engine
Engine Type:V-12, 4-Stroke-Cycle-Diesel
Bore x Strock:170.0 mm * 190.0 mm
Displacement:51.8 L(3161 cu in)
Emission Standard: IMO II Caterpillar 3512E Marine Main Engine
Engine Type:V-12, 4-Stroke-Cycle-Diesel
Bore x Strock:170 mm * 215 mm
Displacement:58.6 L / 3574 cu in
Emission Standard: IMO II-III
3516C
Rated Power: 1230 HP 1200 @ RPM Rated Power: 1305 HP 1200 @ RPM Rated Power : 1379 HP 1200 @ RPM Rated Power: 2525 HP 1800 @ RPM 3516C-SS-ME1650 Marine Main Engine
Engine Type:V-16, 4-Stroke-Cycle-Diesel
Bore x Strock:170.0 mm * 190.0 mm
Displacement :69 L (4211 cu. in.)
Emission Standard :IMO II 3516C-SS-ME1750 Marine Main Engine
Engine Type:V-16, 4-Stroke-Cycle-Diesel
Bore x Strock:170.0 mm * 190.0 mm
Displacement :69 L (4211 cu. in.)
Emission Standard :IMO II 3516C-SS-ME1850 Marine Main Engine
Engine Type : V-16,4-Stroke-Cycle-Diesel
Bore x Strock : 170 mm * 190 mm
Displacement : 69 L (567 in³)
Emission Standard : IMO II Caterpillar 3516E Marine Main Engine
Engine Type:V-16, 4-Stroke-Cycle-Diesel
Bore x Strock:170.0 mm * 190.0 mm
Displacement :69 L (4211 cu. in.)
Emission Standard :IMO III