- Identify the turbocharger by maker, type and serial number from its own nameplate, not the engine’s.
- Use the part numbers from the turbocharger maker’s spare parts list.
- Consider reconditioned cartridges and rotors for major overhauls, from documented workshops.
- Ask specialist turbocharger suppliers, not general chandlers.
Identify the turbocharger
Marine turbochargers are made by a small number of makers, such as ABB, MAN Energy Solutions, Mitsubishi and Napier, and are often built under licence. The turbocharger has its own nameplate with type and serial number, separate from the engine’s. Parts vary between types and series, so always include the turbocharger serial number and a photo of its nameplate.
Common parts
- Bearings, bearing bushes and thrust parts.
- Nozzle rings and turbine blades.
- Compressor wheels, diffusers and inserts.
- Seals, gaskets and O-rings.
- Complete cartridges or rotor assemblies for overhaul.
New, OEM or reconditioned
For routine wear parts, OEM and quality alternative parts can be considered. For rotating parts and cartridges, genuine or properly reconditioned parts with balancing and inspection reports are the usual choice. See genuine, OEM and alternative parts.
Who to ask
Turbocharger specialists hold stock, know interchangeability between series and can often supply reconditioned assemblies on short notice. The Atlas Supply directory lists suppliers under turbochargers and engine systems, including featured partner Shanghai Daewin Marine Parts for turbocharger and four-stroke engine spares.
Questions
Where do I find the turbocharger serial number?
On the turbocharger’s own nameplate, usually on the casing. It is different from the engine serial number.
Are reconditioned turbocharger cartridges a good option?
They can be, when the workshop is known and supplies balancing and inspection records.