Hitachi's Oil Pump (OUPs) are crucial to lubricating the moving engine components from frictional wear and overheating! Hitachi OUPs ensure sufficient lubrication and smooth oil circulation. With a cast aluminum housing to keep weight down and machined steel internals Hitachi's OUPs ensure durability with high thermal efficiency. Precision machined surfaces provide efficient flow and optimal pressure throughout the lubrication system. Designed to meet the exact needs of each specific vehicle, Hitachi's Oil Pumps are the premium choice.