MK382478
Power Steering Oil Pump Assembly
Mitsubishi FUSO®

The Power Steering Oil Pump Assembly is a critical component of a truck's power steering system. It is responsible for maintaining the hydraulic pressure needed to operate the system and ensure smooth steering. The assembly includes a pump, reservoir, and pressure relief valve, all of which work together to circulate power steering fluid throughout the system. The pump is driven by the engine's crankshaft via a belt or direct drive, and it pressurizes the fluid before sending it through the system. The reservoir holds excess fluid and provides a place for air bubbles to escape, while the pressure relief valve ensures that pressure does not exceed safe levels. A malfunctioning power steering oil pump assembly can cause hard or erratic steering, noise from the pump or hoses, and even failure of other components in the power steering system.