According to statistics and analysis from the China Internal Combustion Engine Industry Association, in September 2025, sales of multi cylinder diesel internal combustion engines for commercial vehicles reached 170400 units, a month on month increase of 12.12% and a year-on-year increase of 26.42%; The cumulative sales volume from January to September was 148.45 units, a year-on-year increase of 6.57%. The top selling companies are Weichai, Yuchai, Yunnei, Jiangling, Fukuda Cummins, Jiefang Power, Quanchai, Jianghuai Automobile, Dongkang, and New Power Technology.