On January 8, 2022, Weichai Power released the diesel engine with a base engine thermal efficiency of 51.09% and major achievements in hydrogen technology achievements. The base engine thermal efficiency of 51.09% is another significant revolution of traditional engines, as well as a technical preparation for the implementation of the "China VII" emission standard. The application of this technology will help Weichai Power lead the world in a full spectrum of diesel engines, be of great strategic significance to promoting the energy-efficient and green development of China's traditional internal combustion engine industry, and play a significant leading role in the global internal combustion engine industry.

According to estimation, compared with existing key products (diesel engines with thermal efficiency of 46%) on the market, those with a thermal efficiency of 51% can lead to a reduction of 10% in fuel consumption and carbon dioxide emissions alike, saving fuel consumption by 16 million tons and costs by approximately 140 billion yuan annually, and reducing carbon dioxide emissions by 50 million tons annually. With the massive use of the top technology in the industry, it will generate huge economic and social benefits. While promoting the innovative and low-carbon development of traditional engines, Weichai Power has taken the new energy industry as an important strategy.

The first batch of Sinotruk hydrogen-powered heavy-duty tractor trucks with Weichai's high-power hydrogen fuel cell systems are powerful, eco-friendly, safe, reliable and efficient for full-time use.