The complete oil pump K 71001 is a critical subsystem of the Sulzer ZV40/48, supplying pressurized lubrication to bearings, camshafts and other moving parts. The unit typically includes the housing, impeller(s), drive shaft, bearings and seals, and is engineered for steady flow, low cavitation and long service intervals under heavy marine duty. Regular inspection of clearances, seals (like K 70016) and mounting integrity, plus using the correct oil grade, keeps the pump delivering reliable lubrication — the foundation of engine life and performance.