Sinotruk engine is the engine brand under the China heavy automobile group, which has two production bases in hangzhou, zhejiang province and zhangqiu, shandong province.Sinotruk began to develop diesel engine in 1958, which is the earliest large-scale backbone enterprise and national high-tech enterprise specializing in the production of heavy and high-speed oil engine in China.In 1964, the company developed and developed China's first 6120 high-speed automobile diesel engine, which filled the gap in the production of domestic heavy automobile diesel engine.