Generator Set
critical
Known Models (3)
Caterpillar MaK Marine Generator Set
200-10,000 kW
· Electrical Power Generation
Voltage: 400V-11kV
type: Diesel Generator Set (Marine)
size_range: ['C18', 'C32', '3512', '3516', 'MaK M20', 'MaK M25', 'MaK M32']
power_range_kw: [200, 10000]
variant_count_approx: 7
period_start_year: 1970
period_end_year: None
drive_type: Diesel Engine + Generator
construction: Medium-speed diesel engine, brushless alternator, base frame, vibration mounts
Common Failures:
- • Fuel injector nozzle wear after 8,000-12,000 hrs
- • Turbocharger bearing failure
- • Generator bearing insulation breakdown
- • AVR (Automatic Voltage Regulator) failure
- • Governor hunting/instability
Service: Engine maintenance per Cat/MaK manual (oil change 500-1,000 hrs, injectors 8,000-12,000 hrs, top overhaul 24,000 hrs, major overhaul 48,000 hrs). Generator insulation test annually. AVR calibration annually.
Spares: Caterpillar global network. Lead time: 1-4 weeks for standard parts. Engine overhaul kits: 4-8 weeks.
MAN Energy Solutions (Germany/Denmark) MAN Genset (L16/L21/L27/L32/L35)
500-10,000 kW
· Electrical Power Generation
Voltage: 400V-11kV
type: Diesel Generator Set
size_range: ['L16/24', 'L21/31', 'L27/38', 'L32/44CR', 'L35/44DF']
power_range_kw: [500, 10000]
variant_count_approx: 5
period_start_year: 1980
period_end_year: None
drive_type: Diesel / Dual-Fuel Engine + Generator
construction: Medium-speed 4-stroke engine, brushless alternator
Common Failures:
- • Common Rail system issues (CR models)
- • Turbocharger failure
- • Cylinder head cracking on older models
- • Generator AVR failure
- • Dual-fuel gas valve issues (DF models)
Service: Per MAN ES maintenance schedule. Similar intervals to Wärtsilä.
Spares: MAN PrimeServ global. Lead time: 1-4 weeks.
Wärtsilä Wärtsilä Genset (W20/W26/W32/W46)
500-20,000 kW
· Electrical Power Generation
Voltage: 400V-11kV
type: Diesel / Dual-Fuel Generator Set
size_range: ['W20', 'W26', 'W32', 'W34DF', 'W46F', 'W50DF']
power_range_kw: [500, 20000]
variant_count_approx: 6
period_start_year: 1980
period_end_year: None
drive_type: Diesel / Dual-Fuel Engine + Generator
construction: Medium-speed 4-stroke engine, brushless alternator
Common Failures:
- • Fuel injection system issues
- • Turbocharger bearing wear
- • Cylinder liner wear
- • Generator winding insulation
- • Dual-fuel gas admission valve failure (DF models)
Service: 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.
Spares: Wärtsilä global (130+ countries). Lead time: 1-4 weeks.