Main Engine 4-Stroke · Main Engines (4-Stroke)
The MTU 20V Series 4000 M65 is a 20‑cylinder V‑type medium‑speed marine diesel main engine delivering about 2 900 kW at ~1 800 rpm, featuring common‑rail injection and SCR after‑treatment for IMO Tier III emissions.
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| oil_change | 400-600 hours |
|---|---|
| fuel_filter_change | 1000-1500 hours |
| air_filter_change | 500-1000 hours |
| coolant_change | 2000-3000 hours |
| major_overhaul | 20000-30000 hours |
| cylinder_liner | 0.5-1.0 mm wear limit |
|---|---|
| piston_rings | 0.2-0.5 mm wear limit |
| main_bearings | 0.1-0.3 mm clearance limit |
| crankshaft | 0.1-0.3 mm deflection limit |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Class surveyor typically checks for compliance with Tier III emissions regulations, proper functioning of safety systems, and condition of critical components such as cylinder liners, piston rings, and main bearings
Estimated lifetime: 30000-40000 hours
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