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A powerful portfolio: MAN B&W two-stroke propulsion engines

Just what you are looking for! We offer the largest sizes of marine two-stroke engines. Our engines have power outputs ranging up to 82.4 MW, the most powerful of which rank among the largest engines ever built.
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Full range of MAN B&W two-stroke propulsion engines

Discover the potential and variety of our two-stroke engines.

High power combined with high efficiency: Our two-stroke engines


More compact than others, our ME-C engines with electronic controls serve up a host of advantages. You can look forward to superior performance parameters, fully integrated electronic control as well as the necessary fuel injection pressure and rate shaping at any load. Plus the ME-C engine can be retrofitted for alternative fuels such as methanol, LPG, LNG or ethane.

  • Engine speed: rpm to 56 – 167
  • Output: 4,350 – 82,440 kW at L1


The ME-GI engine impresses with low operating costs and the highest thermal efficiency on the market. Because of its negligible methane slip, low GHG, and reduced CO2 emissions, it is the most environmentally friendly technology available. By the optional use of fuel oil or LNG, it represents a highly efficient, flexible, propulsion-plant solution.

  • Engine speed: rpm to 56 – 167
  • Output: 4,350 – 82,440 kW at L1


Explore ME-GI


The technology of the ME-GIE is based on our successful ME-GI engine. This engine can be operated with ethane as well as LNG – which makes it a good choice and especially lucrative for Ethane carriers. This engine offers very competitive fuel oil and gas consumption, plus operational stability and efficiency due to the diesel principle. 

  • Engine speed: 62 – 127 rpm
  • Output: 8,300 – 29,120 kW at L1


The ME-GA engine is the latest addition to our dual fuel portfolio. Methane is admitted during the compression stroke, which allows for a lower supply pressure compared to other dual fuel engines. This is especially advantageous for vessels with large amounts of boil-off gas, like LNG carriers. The ME-GA engine is Tier III compliant in gas mode, and offers minimal installation and operating costs.   

  • Engine speed: rpm to 66 – 91
  • Output: 10,400 – 16,980 kW at L1
Explore ME-GA


Our ME-LGIM is a dual fuel engine which is characterized by its high efficiency. One of the advantages: It runs on methanol – the cost-effective and innovative marine fuel of today and tomorrow. Why? It’s biodegradable and burns clean, it is reasonable to modify storage and infrastructure, and it significantly reduces SOx, NOx, CO2 and particulate matter.

  • Engine speed: 79 – 117 rpm
  • Output: 8,600 – 16,020 kW at L1


Our ME-LGIP is the only dual-fuel engine on the market that lets you switch between HFO, MGO and LPG fuels without any loss of power or efficiency. It also ensures long-term reliability - with very minimal maintenance requirements. The low operational costs as well as the simple retrofit solution are particularly convincing.

  • Engine speed: 62 - 167 rpm
  • Output: 4,350 – 29,120 kW at L1
Explore ME-LGIP

Always an optimal choice

The MAN Energy Solutions two-stroke portfolio delivers the highest performance and efficiency across all engine types.

MAN B&W two-stroke engines from the 30 to 95 cm bore sizes have a total power range from 3,200 kW to 82,440 measured at L1. With a vast range of different fuel injection concepts from traditional fuel oils, to gaseous and liquid gasses, MAN ensures that you have your future fuel strategy covered.

All MAN B&W engines follow the same naming convention and seemingly random engine names actually carry a lot of useful information.

More than
running hours on LNG for our ME-GI engines
Up to
power output

MAN PrimeServ  protects your energy assets from day one

Whether you feed energy into the grid or satisfy a localized demand, on land or at sea, our technicians provide what you need – where and when you need it, ensuring the availability, flexibility, and profitability of your plant. 

How you benefit: 

  • Fast, reliable and expert customer support  
  • Prompt delivery of OEM spare parts 
  • Bespoke O&M contracts 
  • Global service – 24 hours a day, 365 days a year 
Go to MAN PrimeServ

Looking for a state-of-the-art two-stroke propulsion engine?

We have the ideal solution for you. Start your engines now and reach out to us today.

Talk to our experts

Useful tools

Make a choice

Two-stroke engine calculator for all ME and ME-B engines.

A two-stroke tool for supporting the negotiations between the yard, engine maker, and the customer.

Drawings of our two-stroke ME and ME-B engines and four-stroke GenSets provide guidance in the planning process.

Technical downloads

Access our complete engine portfolio – via PDF or app.

Read and download our Market Update Notes.

Our technical papers provide information on new engine developments and trends, service experience and maintenance, emission requirements, and much more.

Continue reading

  • MAN LGIP Product Poster
    pdf, 507 KB
  • MAN LGIP Factsheet 2021
    pdf, 449 KB
  • Pump Vaporizer Unit for LNG and ethane
    pdf, 4719 KB
  • MAN Direct Sales
    pdf, 1296 KB
    pdf, 620 KB
  • Marine engine programme 2021
    pdf, 17127 KB
    pdf, 1258 KB
  • Dual-fuel conversion for two-stroke applications
    pdf, 1262 KB
  • Efficiency improvements
    pdf, 4409 KB
  • Basic principles of ship propulsion
    pdf, 6766 KB
  • MAN B&W ME-LGIP dual-fuel engines
    pdf, 2012 KB
  • Whatever your vessel, we have a fuel solution that fits
    pdf, 1575 KB

Related news

Thursday, February 11, 2021

Tier III Exhaust-After-Treatment Orders for Low-Speed Engines Pass 1,000 Mark

Exhaust Gas Recirculation and Selective Catalytic Reduction systems slash NOx and benefit efficiency

MAN Energy Solutions’ Two-Stroke Business has announced that it has surpassed 1,000 orders for secondary-measure, Tier III-compliant, emission-reduction technology for its portfolio of MAN B&W-branded, low-speed engines. 

Approximately one-quarter of the orders have been for EGR (Exhaust Gas Recirculation) systems, with SCR (Selective Catalytic Reduction) systems accounting for the remainder. The milestone was passed in early-January 2021 and is built upon references from the company’s portfolio of ME-B, ME-C and MC-C fuel-oil engines. Currently, almost half of all orders have entered active service.

Bjarne Foldager, Senior Vice President and Head of Two-Stroke Business at MAN Energy Solutions, said: “This is a notable milestone that is built on the know-how we have amassed over the past decade or so. Our fully-mature EGR and SCR systems not only achieve Tier III NOx-compliance, but also deliver performance upgrades for engines in terms of increased fuel efficiency and lower, general emissions. As such, our ability to treat a ship as a complete system gives us a clear market advantage that enables us to prioritise environmental considerations.” 

NOx solutions

Exhaust gas recirculation (EGR) prevents the formation of NOx by controlling the combustion process, while Selective Catalytic Reduction (SCR) uses a catalyst and an additive to reduce the NOx generated by the combustion process.

Uniquely for the two-stroke sector, MAN Energy Solutions offers both EGR and SCR as proprietary NOx solutions, including both low- and high-pressure variants of the latter. The company has long experience with EGR technology and reported its first order already in 2011, while SCR-HP won its first order in January 2019 and features a drastically reduced reactor size compared to rival systems.


  • MAN_ES_PR_1000_TierIII_engines_ENG
    PDF, 180 KB English
  • MAN_ES_PM_1000_TierIII_Motoren_GER
    PDF, 190 KB English


  • MAN_ES_SCR_Two_Stroke
    JPG, 831 KB English
  • MAN_ES_EGR_ME-GA_engine
    JPG, 191 KB English


Nils Søholt

Trade Press Marine

Group Communications & MarktingMAN Energy SolutionsTeglholmsgade 412450 Copenhagen SVDenmark

t +45 33 85 26 69

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