According to the statistical analysis of the China Internal Combustion Engine Industry Association, in July 2025, the sales of multi cylinder diesel internal combustion engines reached 289200 units, a month on month increase of 12.30% and a year-on-year increase of 6.14%; The cumulative sales volume from January to July was 2.4441 million units, a year-on-year increase of 4.14%. The top selling companies are Weichai, Yuchai, Yunnei, Quanchai, Xinchai, Dongfeng Cummins, Jiangling Motors, Jiefang Power, Honeycomb Power, and New Power Technology.