On October 10, a special WD12 engine marked as the "10,000th WD12 engine" was carefully taken off the assembly line at Weichai New Power Plant's No. 1 facility and quickly transferred to the vehicle plant. This moment marked a significant milestone in Weichai’s history. The WD12 engine had officially been retired from production on October 20 last year, during the 60th anniversary celebration of Weichai’s establishment. Yet, within just 10 months, the company managed to produce and sell an impressive 10,000 units of this high-performance engine, showcasing the rapid growth of China’s heavy vehicle industry. The WD12 engine has become a symbol of power and reliability in the Chinese market. Wang Xiangfu, a customer from Hejin, Shanxi, shared his strong preference for trucks equipped with the WD12 engine. He emphasized that without this engine, he wouldn’t even consider purchasing a truck. His words reflect the widespread trust in the product’s performance, durability, and power. A year ago, few people knew about the WD12 engine. But today, it's selling like hotcakes. In Shanxi alone, over 1,500 units have been sold in just one year. According to a representative from Weichai Marketing Corporation, major automakers are urgently seeking this powerful engine, with sales expected to reach 15,000 units this year—seven times higher than the previous year. Looking ahead, orders are projected to exceed 30,000 next year, reaching 50,000 units by 2009. This explosive growth proves the market's strong confidence in the WD12 engine. The WD12 engine has not only broken the dominance of foreign brands in the 12-liter engine segment but also accelerated the upgrade of China’s heavy vehicles. Its success in the market demonstrates its strong adaptability and wide application across large trucks, tractors, and dump trucks. As the flagship product of Weichai’s 220kW series in 2007, the WD12 engine is a high-level, high-power engine built after Weichai successfully crossed the Steyr platform. It represents a mature 12-liter engine solution in China, with power output ranging from 247 kW to 353 kW. The engine has undergone rigorous testing, including plateau, high-temperature, and cold environment trials, along with over 50,000 hours of bench tests and 86 road tests. It is specifically designed for China’s heavy trucks and features the highest commercial vehicle engine power in the country. Developed by Weichai Power Europe R&D Center, the WD12 engine incorporates world-leading technology and innovative design. Its economic performance is among the best globally. Compared to similar domestic engines, it offers better fuel efficiency, reliability, robustness, and safety. One of the key features is the specially designed P12 high-pressure oil pump, which operates at up to 1400 Pa. This improves diesel atomization, leading to more complete combustion and reducing overall fuel consumption by 10% to 15%. Over 100,000 kilometers per year, this can save a significant amount of fuel over three years. With a torque of over 1,300 N·m at 1,000 rpm and a maximum torque of 1,950 N·m, the WD12 engine delivers excellent acceleration, load capacity, and efficiency. It also outperforms smaller 9–11-liter engines in terms of reliability and lower failure rates. The engine also integrates Weichai’s WEVB exhaust brake technology, introduced globally. This enhances braking efficiency by over 50%, reduces brake wear, increases safety, and improves driving comfort. Experts believe that as China continues to develop its infrastructure and economy, the demand for high-power heavy trucks and construction machinery will keep rising. Large-displacement, high-power engines like the WD12 will dominate the market for the foreseeable future. With the technological advancements, China is now catching up with global trends, accelerating the development of high-power engines in the heavy truck sector. In conclusion, the WD12 engine is not just a product—it's a symbol of progress, innovation, and the growing strength of China’s automotive industry.

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