6LW25
The Wärtsilä 6LW25 is a medium‑speed, four‑stroke trunk piston main engine delivering around 1.0–2.1 MW (depending on fuel mode) at 900–1000 rpm, notable for its multi‑fuel capability (HFO/MDO, LNG, ammonia).
Engine Specifications
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Inspect fuel pressure curves; regularly check high-pressure lines for leaks; fuel analysis (water path, particle path)
Monitor crankcase ventilation; check sump oil analysis (iron Fe, chromium Cr, base number BN); piston ring wear during regular sump inspection
Monitor turbocharger pressure ratio and exhaust gas temperatures; check scavenge air temperature after charger; periodic ultrasonic inspection or borescope if suspected
Inspect urea inventory and metering system; check SCR catalyst for wear/fouling; exhaust gas testing per IMO Tier III standards
Type-general inspection and maintenance points for this equipment category — not model-specific.
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