Word forms: (regular plural) oil pumps
(Automotive engineering: Vehicle components, Engine, transmission, and exhaust) An oil pump is a pump that sends lubricating oil under pressure to the bearings and other lubricated surfaces of an engine.
⇒ The mechanic found small bits of metal in a valve in the oil pump. ⇒ The oil was kept clean by a pick-up screen inside the sump on the oil pump, and by an external filter ⇒ In a wet sump, the oil pump sucks oil from the bottom of the oil pan through a tube.
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