Oil pump is Second hand, Genuine part part with reference p/n: 9887972/L08036/3020895/L08035B/3021479, for diesel engine Liebherr D924. The oil system includes, among others, an oil pump, an oil cooler, oil valves, piston cooling nozzle. Liebherr D924 engines often have problems with the cooling system. The water pump should be regenerated regularly. Liebherr machines are designed to be comfortable, safe and easy to maintain.