Can you find a part for a 1980s pump if the OEM is gone?

Often yes. Send the OEM part number, drawing or photograph to MARITECH in Hamburg. We screen old-stock dealers first, then propose a reverse-engineered or equivalent route if needed.

Will an equivalent part affect class certification?

Approved equivalents from class-recognized manufacturers retain certification. Reverse-engineered replicas require materials certification and may require surveyor witness.

What information should I send for an obsolete-part inquiry?

OEM part number, pump or compressor model, vessel name, and either an OEM drawing or photographs of the worn part with key dimensions. The more detail, the faster the quote.

Sourcing obsolete & legacy marine spare parts when the OEM no longer ships

When the OEM has discontinued a marine spare part, the three reliable sourcing routes are: stocked-old-stock dealers, reverse-engineered fit-and-function replicas, and approved-equivalent substitutes from a parallel manufacturer. MARITECH's Hamburg desk uses all three — the choice depends on class requirements and lead time.

Average lead time, old-stock route: 1–4 weeks
Average lead time, reverse-engineered replica: 6–14 weeks
Obsolete-parts inquiries handled by MARITECH per year: 200+

Old stock

Specialist dealers (predominantly in Germany, the Netherlands and South Korea) maintain inventories of discontinued OEM parts. Lead time: 1–4 weeks. Class status: original, no requalification needed.

Reverse-engineered replica

Where original drawings are unavailable, MARITECH coordinates 3D scanning and CMM measurement of a worn sample, then manufactures a replica via approved European or Korean machine shops. Lead time: 6–14 weeks. Class status: requires materials certification and, often, surveyor witness.

Approved equivalent

Many obsolete pump and compressor parts have a parallel manufacturer that holds class approval — e.g. a screw pump rotor that fits multiple OEMs. Lead time: 2–6 weeks. Class status: per equivalent's own approval.

Sourcing obsolete & legacy marine spare parts when the OEM no longer ships

Old stock

Reverse-engineered replica

Approved equivalent

Frequently asked questions

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Need a quote on a part from this topic?

Talk to a marine engineer.