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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

Caterpillar C7.1-ME280 Marine Main Engine

Caterpillar C7.1-ME280 Marine Main Engine

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

Caterpillar C7.1-ME280 Marine Main Engine

Caterpillar C7.1-ME350 Marine Main Engine

Rated Power: 261 HP @ 2500 RPM
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-ME280 Marine Main Engine

Caterpillar C7.1-ME400 Marine Main Engine

Rated Power: 298 HP @ 2600 RPM
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-ME280 Marine Main Engine

Caterpillar C7.1-ME425 Marine Main Engine

Rated Power: 317 HP @ 2700 RPM
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

Vietnam | Pump – Electric Motor

Vietnam | Pump – Electric Motor

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.
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

Indonesia | Construction – Customer Interview

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.
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

Thailand | Pump  – Equipment Production

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.
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

Malaysia | Construction – Ground Support Equipment

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.
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!

C175

Caterpillar C175 Railway Engine Optimized design...

C27

C27

Caterpillar C27 Railway Engine Cooling system...

C18

C18

Caterpillar C18 Railway Engine The superior...

Indonesia | Marine – Indonesia Shipyard Interview

Indonesia | Marine – Indonesia Shipyard Interview

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.

Thailand | Pump – Thailand Engineering Company Interview

Thailand | Pump – Thailand Engineering Company Interview

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

C18 | 597 kW

Caterpillar C18 Pump Drive Engine Series The...

C32 | 1350 HP

C32 | 1350 HP

Caterpillar C32 Industrial Engine Caterpillar 32...

C27 | 1150 HP

C27 | 1150 HP

Caterpillar C27 Industrial Engine Caterpillar 27...

C18 | 800 HP

C18 | 800 HP

Caterpillar C18 Industrial Engine Caterpillar 18...

C15 | 595 HP

C15 | 595 HP

Caterpillar C15 Industrial Engine Caterpillar 15...

C13 | 520 HP

C13 | 520 HP

Caterpillar C13 Industrial Engine Caterpillar 13...

C7 | 255 HP

C7 | 255 HP

Caterpillar C7 Industrial Engine Caterpillar 7...

C2.2 | 66 HP

C2.2 | 66 HP

Caterpillar C2.2 Industrial Engine Caterpillar...

Caterpillar has a New Plan to Help Customers With Energy Transformation!

Caterpillar has a New Plan to Help Customers With Energy Transformation!

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 Supports The World’s Largest Coal-bed Methane Power generation Project

Caterpillar Supports The World’s Largest Coal-bed Methane Power generation Project

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…

Build Field And Engine Specific Maintenance Based On Trend Analysis

Build Field And Engine Specific Maintenance Based On Trend Analysis

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.

Advanced Power Solutions Help Reduce Carbon Emissions

Advanced Power Solutions Help Reduce Carbon Emissions

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.

C9.3

Caterpillar C9.3-ME375 Marine Main Engine

Caterpillar C9.3-ME375 Marine Main Engine

Rated Power: 280 HP @ 1800 RPM
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

Caterpillar C9.3-ME416 Marine Main Engine

Rated Power: 310 HP @ 2100 RPM
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-ME375 Marine Main Engine

Caterpillar C9.3-ME476 Marine Main Engine

Rated Power: 355 HP @ 2300 RPM
Engine Type: I-6, 4-Stroke-Cycle-Diesel
Bore x Strock: 115 mm x 149 mm
Aspiration: Turbocharged-Aftercooled
Emission Standard: IMO II

C18

Caterpillar C18-454 Marine Main Engine

Caterpillar C18-454 Marine Main Engine

Rated Power: 339 HP @ 1800 RPM
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 C18-454 Marine Main Engine

Caterpillar C18-479 Marine Main Engine

Rated Power: 357 HP @ 1800 RPM
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 C18-454 Marine Main Engine

Caterpillar C18-600 Marine Main Engine

Rated Power: 448 HP @ 1800 RPM
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

Caterpillar C32-660 Marine Main Engine

Caterpillar C32-660 Marine Main Engine

Rated Power: 492 HP @ 1800 RPM
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 C32-660 Marine Main Engine

Caterpillar C32-750 Marine Main Engine

Rated Power: 559 HP @ 1800 RPM
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 C32-660 Marine Main Engine

Caterpillar C32-850 Marine Main Engine

Rated Power: 634 HP @ 1800 RPM
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 C32-660 Marine Main Engine

Caterpillar C32-1000 Marine Main Engine

Rated Power: 746 HP @ 1800 RPM
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 C32-660 Marine Main Engine

Caterpillar C32-1000-1 Marine Main Engine

Rated Power: 634 bkW @ 1800 RPM
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

C175-16-3302 Marine Main Engine

C175-16-3302 Marine Main Engine

Rated Power: 2428 HP @ 1800 RPM
Engine Type:Vee 16,4-Stroke-Cycle Diesel
Bore x Strock: 175 mm x 220 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II

C175-16-3302 Marine Main Engine

C175-16-3045 Marine Main Engine

Rated Power: 2239 HP @ 1800 RPM
Engine Type:Vee 16,4-Stroke-Cycle Diesel
Bore x Strock: 175 mm x 220 mm
Aspiration:TC & Aftercooled Aspiration
Emission Standard: IMO II

C175-16-3302 Marine Main Engine

C175-16-3468 Marine Main Engine

Rated Power: 2550 HP @ 1800 RPM
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

Caterpillar C280-8-3299 Marine Main Engine

Caterpillar C280-8-3299 Marine Main Engine

Rated Power: 2460 bkW @ 1000 RPM
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 C280-8-3299 Marine Main Engine

Caterpillar C280-8-3634 Marine Main Engine

Rated Power: 2710 bkW @ 1000 RPM
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

C280-12-4962 Marine Main Engine

Rated Power: 3700 bkW @ 1000 RPM
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

C280-12-5444 Marine Main Engine

Rated Power: 4060 bkW @ 1000 RPM
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

3512C-SS-ME1400 Marine Main Engine

3512C-SS-ME1400 Marine Main Engine

Rated Power:1044 HP 1600 @ RPM
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-ME1400 Marine Main Engine

3512C-SS-ME1500 Marine Main Engine

Rated Power: 1118 HP 1600 @ RPM
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-ME1400 Marine Main Engine

3512C-SS-ME1600 Marine Main Engine

Rated Power:1118 HP 1600 @ RPM
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-ME1400 Marine Main Engine

Caterpillar 3512E Marine Main Engine

Rated Power:1901 HP 1800 @ RPM
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

3516C-SS-ME1650 Marine Main Engine

3516C-SS-ME1650 Marine Main Engine

Rated Power: 1230 HP 1200 @ RPM
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-ME1650 Marine Main Engine

3516C-SS-ME1750 Marine Main Engine

Rated Power: 1305 HP 1200 @ RPM
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-ME1650 Marine Main Engine

3516C-SS-ME1850 Marine Main Engine

Rated Power : 1379 HP 1200 @ RPM
Engine Type : V-16,4-Stroke-Cycle-Diesel
Bore x Strock : 170 mm * 190 mm
Displacement : 69 L (567 in³)
Emission Standard : IMO II

3516C-SS-ME1650 Marine Main Engine

Caterpillar 3516E Marine Main Engine

Rated Power: 2525 HP 1800 @ RPM
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

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