第一商用车网·2025-10-17 07:00Core Viewpoint - The domestic internal combustion engine and multi-cylinder diesel engine markets are experiencing significant growth, driven by favorable sales data and government initiatives aimed at stabilizing and promoting the mechanical industry [1][2][6]. Sales Performance - In September 2025, internal combustion engine sales reached 5.069 million units, with a month-on-month increase of 13.97% and a year-on-year increase of 21.14%. Cumulative sales from January to September totaled 39.6696 million units, reflecting a year-on-year growth of 15.73% [1]. - Diesel engine sales in September 2025 were 421,800 units, showing a month-on-month increase of 13.25% and a year-on-year increase of 12.45%. Cumulative sales for the first nine months reached 3.8264 million units, up 5.39% year-on-year [2]. - Multi-cylinder diesel engines sold 340,000 units in September 2025, with a month-on-month increase of 12.51% and a year-on-year increase of 15.42%. Cumulative sales for the first nine months were 3.0959 million units, reflecting a year-on-year growth of 5.58% [6]. Market Dynamics - The commercial vehicle market, closely related to multi-cylinder diesel engines, also showed strong performance in September 2025, with production and sales reaching 376,000 and 368,000 units, respectively, marking increases of 19.3% and 16.3% month-on-month, and 27.7% and 29.6% year-on-year [6]. - The top ten companies in multi-cylinder diesel engine sales accounted for 78.06% of total sales, a slight increase from 77.95% in the previous month [6]. Company Rankings - Weichai Power led the multi-cylinder diesel engine market in September 2025 with sales of 73,300 units, achieving a month-on-month growth of 4.77%. Yuchai Group followed with 41,000 units, and Yunnei Power ranked third with 29,200 units, experiencing a significant month-on-month increase of 30.83% [8][10]. - For the cumulative sales from January to September 2025, Weichai maintained its lead with 573,700 units sold, a year-on-year increase of 1.62%. Yuchai's cumulative sales reached 434,700 units, reflecting a substantial year-on-year growth of 27.08% [10][12]. Future Outlook - The mechanical industry is expected to continue its growth trajectory, supported by government policies aimed at enhancing supply and demand dynamics. Companies are encouraged to explore new market opportunities while navigating challenges such as increased competition and regulatory pressures [1][22].