Domestically made MAN MC05/MC07 diesel engine is equipped, and with the torque ranging from 570 Nm to 1,250 Nm and the power from 140 Ps to 336 Ps, it can be accelerated faster. With the help of the application of brand-new combustion principle which reduces the fuel consumption and improves the engine efficiency, the engine has very high fuel economy. Meanwhile, its new high-strength material and modularized design not only simplify the engine structure but also enhance the strength of engine block. MC07 series engines adopt integral cylinder head and certain bolting technology, which makes it have high strength, reliability and tightness. The engine cylinder block can be equipped with dry-type cylinder liner or without liner (note: no cylinder liner for 300 bhp and above model). For the engine cylinder block without liner, the liner bore working surface has been honed with ceramics, which achieves optimum wear resistance and fuel consumption. Moreover, MC07 series engines are equipped with the second generation of Bosch common-rail fuel injection system which has better performance. Specifically, the completely enclosed structure makes the crankcase more economical and environment friendly. Depending on the service environment and the quality of fuel and lubricating oil, the maintenance period of the engine can be up to 120,000 km.