China has completed and delivered its first domestically developed large-scale marine liquefied natural gas (LNG) dual-fuel engine, marking a significant step in its shipbuilding and maritime engineering capabilities.

The engine was handed over in Dalian, Liaoning Province, and is designed for use on ultra-large container vessels with capacities of 24,000 TEU and 21,000 TEU. It represents a major advancement in the country’s ability to produce high-power marine propulsion systems locally.

Known as the 8G95ME-C10.5-GI-EcoEGR model, the engine is built at an enormous scale, standing about 16 meters tall and weighing over 1,600 tonnes. It is capable of producing up to 74,725 horsepower, making it one of the most powerful high-pressure gas dual-fuel marine engines manufactured in China.

One of its key features is an exhaust gas recirculation system, which allows the engine to comply with International Maritime Organization emission standards without relying on additional external cleaning equipment. This design is intended to reduce emissions while improving overall efficiency and operational safety.

Engine developers highlighted that the project involved overcoming several complex engineering challenges, including advanced fuel injection technology, high-pressure gas handling, and precise cylinder performance control under varying operating conditions.

According to the development team, the engine combines improved fuel efficiency with lower emissions and enhanced reliability, supporting the growing demand for greener shipping solutions.

Officials described the delivery as an important milestone in China’s push to strengthen its domestic production of large marine engines and reduce dependence on foreign technology in high-end ship propulsion systems.