STP-Parts – Cores for a better life

Cores · Hydraulic

Power steering pumps as cores

Hydraulic power steering pumps supply steering gears and steering boxes with oil pressure. They are driven by belt or directly by the engine and are a classic reman product: compact, standardised, fitted in large numbers.

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Why this part is valuable as a core

The pump housing and drive are durable. Vanes or gears, seals and bearings are replaced. The reman part reaches the delivery rate of the new part again.

Many variants differ only in pulley, reservoir or ports. Clean identification is therefore crucial.

What we buy

  • Vane pumps for cars and vans
  • Gear pumps for trucks and buses
  • Tandem pumps (steering + brake booster)
  • Pumps with and without reservoir
  • Pumps with pulley or direct drive

Typical failure causes that make a core valuable

  • Noise from worn vanes or bearings
  • Pressure loss, heavy steering at standstill and with warm oil
  • Leakage at the shaft seal
  • Sticking flow-control or pressure-relief valve

Acceptance criteria

  • Housing without cracks, ports undamaged
  • Drive shaft turns, not seized
  • Pulley may be missing
  • No weld or solder spots
  • OE number or manufacturer marking legible

Questions about this part

Do you accept power steering pumps with noise or pressure loss?

Yes, these are the typical failure causes and exactly the cases corrected in remanufacturing.

What about pumps without reservoir?

No problem. For many variants the reservoir is not part of the core.

Do you also buy tandem pumps?

Yes, tandem pumps from diesel vehicles are part of the range.

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.