Turbocharger · Turbochargers
The Mitsubishi MET42MB‑HD is a radial‑type turbocharger designed for medium‑speed, four‑stroke marine diesel engines with bore sizes between 200 mm and 400 mm, delivering a pressure ratio of about 4:1 and an airflow around 5.8 kg/s.
Do you have the manufacturer datasheet for this model? Send it with the enquiry form — we check it and name the source.
| On-line compressor washing | per maker's recommendation, commonly every 100-250 running hours depending on fouling rate |
|---|---|
| Off-line turbine/compressor cleaning | typically every 2000-4000 hours or on boost pressure deviation - confirm against the maker's manual |
| Bearing inspection/replacement | per maker's interval, commonly in the 12000-24000 hour range - confirm against the MET42MB-HD-specific schedule |
| Full overhaul (bearings, seals, balance check) | per maker's schedule, commonly every 16000-24000 hours |
| Bearing radial clearance | per maker's tables for this frame size - no generic figure, confirm against the MET42MB-HD manual |
|---|---|
| Rotor unbalance/vibration trip level | per maker's alarm and trip setpoints - confirm against the engine or turbocharger manual |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
The turbocharger normally falls under the main engine's Continuous Machinery Survey scope; class checks boost pressure and exhaust temperature trend records, evidence of scheduled cleaning/overhaul, and function of associated safety trips (overspeed, low lube oil pressure) where fitted.
Estimated lifetime: Radial turbochargers of this frame size are commonly given a major overhaul interval in the 16,000-24,000 hour range, with the rotor/bearing cartridge typically exchanged as a unit rather than repaired on board - treat as an industry general guide and confirm against Mitsubishi's specific schedule for the MET42MB-HD.
Free of charge — send us your request for Mitsubishi equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, Mitsubishi first.
Tell us what you need for this Mitsubishi MET42MB-HD — a part, a service call, a second opinion. Are you Mitsubishi? Claim this brand page.
Service engineer? Write the day report for this MET42MB-HD in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.
Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.