Power Steering Pump Oil Reservoir Assembly ?️

This reservoir is a key part of the hydraulic power steering system. It stores the steering fluid, keeps it clean, and feeds the pump with a steady supply so the steering stays smooth and light. Without a healthy reservoir, the pump can pull air instead of oil, especially during cold starts or quick turns.

Why this part is needed ✅

The steering pump needs constant fluid volume and stable pressure. The reservoir also helps separate bubbles from the oil and allows fluid expansion when it heats up. A good unit prevents foaming, reduces pump noise, and supports long seal life.

How it works ⚙️

Fluid returns from the steering system back into the reservoir, where it calms and de-aerates. The outlet supplies oil to the vane pump inlet. Internal filtering and proper hose fittings help stop dirt and leaks, keeping hydraulic flow consistent.

What happens if it’s broken ?

Cracks, warped fittings, or clogged passages can cause leaks, whining noises, heavy steering, and pump cavitation. If ignored, the vane pump may overheat, wear fast, and fail—often followed by contaminated fluid damaging the steering rack seals.

Compatible Models

• Mirage
• Space Star