International brands like Cummins, MAN, and Volvo are known for advanced technology and stable performance, suitable for high-end and heavy-duty applications. Chinese brands such as Weichai, Yuchai, and SDEC have steadily improved their technology and market share in recent years, with broad product coverage, especially prominent in marine and construction machinery diesel engines.

When choosing a diesel engine brand, it is important to consider the specific application, power requirements, after-sales service, and other factors comprehensively.