On the basis of Z12V190B diesel engine, the 2000 series diesel engine has been greatly improved in terms of improving the reliability, economic performance and power performance of diesel engine, solving three leaks, appearance quality and maintenance, etc., so as to better meet the power requirements of various oil drilling rigs, generator sets and construction machinery.2000 series diesel engine can be matched with torque converter engine set, Hydraulic transmission coupling set and diesel generator set, used for driving drilling rigs or mud pumps, and can also be matched with fire pump, flood pump, etc