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Engine expertise

Marine engine brands we service.

Caterpillar, Cummins, MAN and MTU main engines and generator sets — diagnosed, serviced, repaired and overhauled on board. Independent specialists, with no dealer obligations and no incentive to sell you an engine you do not need.

Brands
CAT · Cummins · MAN · MTU
Also
Generator sets built on them
Range
High-speed to medium-speed diesel
Status
Independent — not a dealer
Independence

Independent by design

Superyacht Engine Service is an independent marine engineering company. We are not an authorised dealer, official service partner or representative of Caterpillar, PON Power, Cummins, MAN or MTU. All brand names and model designations on this website are used solely to describe the equipment we service, and all trademarks remain the property of their respective owners. For factory warranty work or authorised-network service, contact the manufacturer's official dealer.

Independence is the point. We have no sales target attached to a brand, so a condition report says what the measurements say. Plenty of chief engineers and management companies use us alongside the dealer network on purpose: the dealer where warranty demands it, and an independent specialist for diagnosis, service, overhaul and rapid attendance everywhere else.

Across all brands

What stays the same whatever the badge

  • Measurement before parts — pressures, temperatures, flows, clearances and oil analysis compared against the manufacturer's published values.
  • Manufacturer specifications — clearances, torques and settings taken from the service data for your specific engine and rating, not from a general rule of thumb.
  • Documented work — every visit leaves a written record per vessel, suitable for owners, managers, surveyors and insurers.
  • Genuine or equivalent parts, declared — we tell you which we are using and where it matters.
  • Testing before hand-over — sea trial, load run or load bank test, with readings recorded.
  • Alignment as part of the job — the drivetrain re-checked after any engine or gearbox work.
Engines from other manufacturers — Volvo Penta, Scania, Deutz, Yanmar, Mitsubishi and others — appear regularly on the vessels we attend, particularly as auxiliaries. Tell us what you have; we will say honestly whether we are the right people for it.
Services

What we do with them

On-site repair · scheduled maintenance · overhaul and revision · engine and shaft alignment · generator service and repair · emergency callout. Coverage across Europe is described on the service areas page.

Questions we get asked

Frequently asked questions

Are you an authorised dealer or official service partner?

No. We are an independent marine engineering company and we state that clearly on every page. We are not affiliated with Caterpillar, PON Power, Cummins, MAN or MTU. For warranty and authorised-network service, use the manufacturer’s official dealer.

Will independent service affect my warranty?

Work inside a factory warranty period should normally go through the official network to keep cover intact. Outside warranty, independent service is entirely normal, and our documentation is prepared to a standard that satisfies surveyors, insurers and prospective buyers.

Can you diagnose electronically controlled engines?

Yes. We read and interpret engine management data and then verify it physically. A fault code identifies a complaining circuit; measurement identifies the cause.

Do you work on engines from brands not listed here?

Often, yes — particularly auxiliaries from Volvo Penta, Scania, Deutz, Yanmar and Mitsubishi. Send the details and we will give you a straight answer rather than learning on your engine.

Can you give a second opinion on someone else’s diagnosis?

That is a large part of what we do. Being independent means we have no reason to confirm or contradict anyone — we measure and report what we find.

Service enquiry

Tell us about the engine and the vessel.

Send the details below and you will hear back from an engineer, not a call centre. For a vessel that is stranded or on a tight departure slot, call +31 6 20743967 or message us on WhatsApp.

Direct line

Tell us the engine and we will tell you what we can do.

Model, serial and running hours are enough for a straight answer on whether we are the right people for the job.

Superyacht Engine Service — powered by Marine Service Altena B.V.
+31 6 20743967 · info@superyachtengineservice.com
KvK 99330911 · Available for callout across Europe
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