"> Wärtsilä Wärtsilä Genset (W20/W26/W32/W46)
⚓ Working on this equipment?
Ask the AI troubleshooter, log your hours on board and turn them into invoice-ready service reports — for this exact model.
Start free — 14 days →
No credit card required
🔧 69 verified suppliers & service companies for Wärtsilä in the Maritime Network Find suppliers →
Wärtsilä

Wärtsilä Genset (W20/W26/W32/W46)

The Wärtsilä Genset series (W20, W26, W32, W46) are medium‑speed diesel or dual‑fuel generator sets that provide shipboard electrical power from 500 kW up to 20 MW with a brushless alternator and integrated control system.

Wärtsilä Wärtsilä Genset (W20/W26/W32/W46)
500-20,000 kW
Capacity
400V-11kV
Voltage
Electrical Power Generation
Medium

Components & Design

Component data being added…

Technical Data

type Diesel / Dual-Fuel Generator Set
variant count approx 6
period start year 1980
drive type Diesel / Dual-Fuel Engine + Generator
construction Medium-speed 4-stroke engine, brushless alternator

🤖 Ask about this model

One free question — answered like a marine engineer. No account needed.

Common failures & inspection points

Fuel injection system issues
Turbocharger bearing wear
Cylinder liner wear
Generator winding insulation
Dual-fuel gas admission valve failure (DF models)

Service & Maintenance

Per Wärtsilä maintenance schedule. Oil change 500-1,000 hrs. Injectors 6,000-12,000 hrs. Top overhaul 18,000-24,000 hrs. Major overhaul 36,000-48,000 hrs.

Suppliers & Spare Parts

Direct links to manufacturer, datasheet, spare-parts portal and dealers — request access below.

📄 Request sourcing links & documents
🛠 Manage this equipment in your fleet

Cases, daily reports, timesheets and AI troubleshooting in the OceanSphere Marine app — free for 14 days.

Start free trial →
🔎 Suppliers & service for this equipment

Find manufacturers, repair shops and spare-part dealers in the Maritime Network — our global company directory.

Maritime Network →

Replacement Parts

Wärtsilä global (130+ countries). Lead time: 1-4 weeks.
Equipment Model #37970 · ✓ still in production