Weichai Power is a leader in China's internal combustion engine industry. It owns Weichai Power-full series of engines, as well as heavy trucks, smart agricultural machinery, transmissions, axles, torch spark plugs, and well-known domestic and foreign brands such as Germany's KION, Germany's Linde Hydraulics, the United States' Dematic, the United States' PSI, France's Baudouin, and Canada's Ballard. It ranks 22nd among the top 100 Chinese multinational companies and 132nd in the Fortune Global 500 in 2023. It sells nearly one million engines annually, and its total sales rank first in the world.

It has national innovation platforms such as the National Key Laboratory of Internal Combustion Engines and Power Systems, the National Fuel Cell Technology Innovation Center, the National Commercial Vehicle Powertrain Assembly Engineering Technology Research Center, the National Industrial Design Center, the National Internal Combustion Engine Product Quality Inspection and Testing Center, the National Internal Combustion Engine Industry Metrology and Testing Center, and the National Certified Enterprise Technology Center. It has established ten cutting-edge innovation centers in many places around the world and established a global collaborative R&D system. It has won 9 national science and technology awards, including 1 first prize for national scientific and technological progress (2018). It will be rated as a 5A high-quality world-class enterprise in 2023.