STP-Parts – Cores for a better life

Cores · Electro-hydraulic (EHPS)

Electric power steering pumps as cores

Electro-hydraulic power steering pumps combine electric motor, hydraulic pump, reservoir and control unit in one unit. They were fitted in large numbers from the 2000s onwards and are now one of the most sought-after reman products, because new parts are expensive and failures frequent.

Camshaft close-up

Why this part is valuable as a core

The pump unit is usually mechanically intact. Typical failure causes are electronics, brushes or bearings, which are renewed during remanufacturing.

The control unit must be part of the core. Without electronics, remanufacturing is generally not economic.

What we buy

  • EHPS units for cars and vans
  • Pumps with and without reservoir
  • Variants with CAN bus connection
  • Complete units with bracket

Typical failure causes that make a core valuable

  • Electronic fault, pump does not start
  • Worn carbon brushes or bearings of the electric motor
  • Decreasing delivery rate, heavy steering
  • Corrosion on connectors and housing

Acceptance criteria

  • Control unit present, housing not opened
  • Connector undamaged, cables not cut
  • Pump and motor without housing breakage
  • Reservoir may be missing or damaged
  • Type plate legible

Questions about this part

Do you buy EHPS pumps with electronic faults?

Yes. Electronic and motor faults are the standard cases for remanufacturing.

Does the reservoir have to be included?

No, for most remanufacturers the reservoir is not part of the core.

Do you also take smaller quantities?

Yes, single units too. For regular volumes we arrange collections.

Have this part to sell, or need it as a core?

Send us the part number, quantity and a photo. We usually reply within one working day.