第一商用车网·2025-06-15 13:30Core Viewpoint - The internal combustion engine market in China is experiencing a mixed performance, with a decline in month-on-month sales but a year-on-year increase, indicating potential growth opportunities in the long term [2][4][28]. Sales Performance - In May 2025, internal combustion engine sales reached 4.1561 million units, a month-on-month decrease of 6.74% but a year-on-year increase of 12.31%. Cumulative sales from January to May totaled 21.6427 million units, reflecting a year-on-year growth of 16.36% [2]. - Diesel engine sales in May 2025 were 401,000 units, down 16.46% month-on-month but up 1.47% year-on-year. Cumulative sales for the first five months were 2.2494 million units, with a year-on-year increase of 3.77% [4]. - Multi-cylinder diesel engine sales in May 2025 were 156,200 units, a month-on-month decline of 10.52% but a year-on-year increase of 3.47%. Cumulative sales for January to May reached 855,300 units, with a year-on-year growth of 0.13% [19]. Company Performance - The top companies in the multi-cylinder diesel engine market for May 2025 included Weichai, Yuchai, and Yunnei, with Weichai leading at 56,700 units sold [9][20]. - Cumulative sales data for multi-cylinder diesel engines from January to May 2025 showed Weichai with 330,500 units sold, holding an 18.12% market share, while Yuchai followed with 255,400 units and a 14.00% market share [10][12]. - Other notable companies included Yunnei with 158,900 units (8.71% market share) and Anhui Quanchai with 157,400 units (8.63% market share), both showing positive year-on-year growth [12][14]. Market Trends - The commercial vehicle market, closely related to multi-cylinder diesel engines, saw production and sales of 336,000 and 335,000 units respectively in May 2025, with a month-on-month decline of 7.4% and 8.8%, but a year-on-year production increase of 4.4% [8]. - The overall trend indicates that while month-on-month sales are declining, year-on-year growth suggests a recovery phase, potentially driven by supportive policies and market demand [28].