The marine diesel engine market is further segmented into 2-stroke engines and 4-stroke engines. In 2017, 4-stroke engines held two-thirds of the market and this share is expected to increase by 3.71% (CAGR) until 2023 due to their high-performance capacity.
Based on the above information, we can conclude that the 2-stroke diesel marine engine market has a one-third share of the total market. Since the market size in 2018 was $6.3 billion, the 2-stroke engine market is worth approximately $2.1 billion ($6.3 billion*1/3).
According to Spectro Scientific, 2-stroke diesel engines are used in about 30,000 ships worldwide.
Statista reports that there were 53,045 merchant ships in the world. Based on the above findings, if one-third of these ships were considered to have 2-stroke engines, then the total number of ships can be roughly estimated as 17,682 (53,045*1/3)
ECU and Non ECU engines
According to Markets and Markets, the global marine fuel injection systems market (includes fuel injectors, fuel pumps, fuel valves, Electronic Control Unit (ECU), and others) was worth $4.3 billion in 2016. The fuel injection segment dominated the market, followed by ECUs. By application, commercial vessels held more than half of the marine fuel injection systems market.
The leading players in the global marine fuel injection market include Cummins Inc. (U.S.), Liebherr International AG (Switzerland), Robert Bosch GmbH (Germany), Rolls-Royce Holding PLC. (U.K.), and Caterpillar Inc. (U.S.)
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