Shaft Generator / PTO
high
Power take-off generator driven by the main engine shaft for electrical power generation at sea.
25 yr
Typical Lifetime
Typical Manufacturers
ABB
Siemens
Hyundai
WEG
Known Models (33)
Beta Marine BetaGen 10 Marine Generator
Per ship electrical load analysis
· 7.0 kW
· Diesel
engine_model: None
cylinders: None
configuration: None
displacement_l: None
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel']
application: marine generator set
Common Failures:
- • Raw-water impeller failure
- • Heat exchanger fouling
- • Alternator bearing wear
Service: Typical routine service includes oil/filter change, fuel filter change, seawater pump inspection and belt tension check according to Beta Marine schedule.
Spares: Keep impeller kit, filters, belts, zinc anodes where fitted, thermostat and alternator bearings depending on operating area.
Caterpillar C7.1 Marine Generator Set
Per ship electrical load analysis
· 150.0 kW
· Diesel/MDO/MGO
engine_model: C7.1
cylinders: 6
configuration: inline
displacement_l: 7.01
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO', 'MGO']
application: marine generator set
Common Failures:
- • Aftercooler fouling causing high charge-air temperature
- • Injector wear causing hard starting and smoke
- • Raw-water pump seal leakage on seawater-cooled installations
Service: Follow Caterpillar marine maintenance schedule. Typical routine service includes engine oil and filter change around 250-500 operating hours depending on duty and oil analysis; valve lash inspection at scheduled interval; cooling system and aftercooler inspection periodically.
Spares: Keep oil filters, fuel filters, seawater pump impeller or kit, belts, thermostat, injector sealing kits and starter/alternator spares depending on vessel redundancy.
Caterpillar C9.3 Marine Generator Set
Per ship electrical load analysis
· 250.0 kW
· Diesel/MDO/MGO
engine_model: C9.3
cylinders: 6
configuration: inline
displacement_l: 9.3
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO', 'MGO']
application: marine generator set
Common Failures:
- • Fuel injector wear causing uneven exhaust temperatures
- • Turbocharger fouling from prolonged low-load operation
- • Heat exchanger fouling causing high jacket-water temperature
Service: Routine maintenance normally includes oil, fuel filter and coolant checks at manufacturer-defined hour intervals; avoid prolonged low-load running and perform load checks under operating conditions.
Spares: Recommended onboard spares include filter sets, belts, seawater pump kit, injector seals, sensors and starter motor for critical applications.
Caterpillar C18 ACERT Marine Generator Set
Per ship electrical load analysis
· 550.0 kW
· Diesel/MDO/MGO
engine_model: C18 ACERT
cylinders: 6
configuration: inline
displacement_l: 18.1
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO', 'MGO']
application: marine generator set
Common Failures:
- • Charge-air cooler fouling causing high exhaust temperature
- • Injector tip deposits after poor fuel quality
- • Turbocharger turbine fouling after extended low-load operation
Service: Operate periodically at sufficient load to reduce wet stacking. Carry out oil and filter changes, valve adjustment and aftercooler inspection according to Caterpillar marine service schedule.
Spares: Keep fuel injectors or injector kits according to criticality, filter sets, turbocharger service kit, seawater pump kit, belts and key electronic sensors.
Caterpillar C32 ACERT Marine Generator Set
Per ship electrical load analysis
· 940.0 kW
· Diesel/MDO/MGO
engine_model: C32 ACERT
cylinders: 12
configuration: V
displacement_l: 32.1
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO', 'MGO']
application: marine generator set
Common Failures:
- • Injector wear causing cylinder imbalance
- • Turbocharger fouling under low-load operation
- • Cooling package fouling causing derating or shutdown
Service: Follow Caterpillar planned maintenance. Typical shipboard practice includes daily level and leak checks, periodic load testing, oil sampling and scheduled valve lash and injector inspection.
Spares: Keep full filter service kits, seawater pump components, belts, sensors, starter spares and selected injector components where vessel redundancy is limited.
Caterpillar 3508B Marine Generator Set
Per ship electrical load analysis
· 968.0 kW
· Diesel/MDO
engine_model: 3508B
cylinders: 8
configuration: V
displacement_l: 34.5
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO']
application: marine generator set
Common Failures:
- • Cylinder head cracking or valve seat wear in high-hour engines
- • Turbocharger fouling and bearing wear
- • Fuel nozzle wear causing high exhaust temperature spread
Service: Daily checks include oil pressure, jacket-water temperature and exhaust temperature spread. Major component inspection is normally planned by running hours and condition monitoring, with oil analysis strongly recommended.
Spares: Maintain filters, fuel nozzles, injector components, exhaust manifold gaskets, turbocharger kits, water pump kits and selected cylinder head spares for remote operation.
Caterpillar 3512B Marine Generator Set
Per ship electrical load analysis
· 1360.0 kW
· Diesel/MDO
engine_model: 3512B
cylinders: 12
configuration: V
displacement_l: 51.8
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO']
application: marine generator set
Common Failures:
- • Injector and nozzle wear causing exhaust temperature deviation
- • Aftercooler fouling or leakage
- • Turbocharger fouling and oil leakage at high running hours
Service: Use oil analysis and exhaust temperature trending. Scheduled maintenance includes oil and filter service, valve lash checks, fuel system checks and cooling system cleaning at manufacturer-defined intervals.
Spares: Keep service kits, filters, nozzle sets, gaskets, turbocharger cartridge or overhaul kit, jacket-water pump kit and critical sensors.
Caterpillar 3516B Marine Generator Set
Per ship electrical load analysis
· 1825.0 kW
· Diesel/MDO
engine_model: 3516B
cylinders: 16
configuration: V
displacement_l: 69.0
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO']
application: marine generator set
Common Failures:
- • Fuel nozzle wear leading to high exhaust temperatures
- • Charge-air cooler fouling
- • Turbocharger bearing and seal wear in high-hour service
Service: Plan maintenance by Caterpillar hour schedule and condition monitoring. For standby units, run monthly load tests and avoid continuous light-load operation.
Spares: Critical spares include fuel nozzles, filters, gaskets, jacket-water and seawater pump kits, turbocharger service parts and engine control sensors.
Cummins 6BT5.9-DM Marine Generator Set
Per ship electrical load analysis
· 92.0 kW
· Diesel/MDO/MGO
engine_model: 6BT5.9-DM
cylinders: 6
configuration: inline
displacement_l: 5.9
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO', 'MGO']
application: marine generator drive
Common Failures:
- • Raw-water pump impeller damage
- • Injector pump leakage or governor instability on older units
- • Heat exchanger fouling causing overheating
Service: Routine service normally includes oil and filter change around 250 hours, fuel filter replacement, belt inspection and cooling circuit inspection. Load-test periodically.
Spares: Keep fuel filters, oil filters, impeller kit, belts, thermostat, injector pipes and starter motor where single generator redundancy is limited.
Cummins 6CTA8.3-DM Marine Generator Set
Per ship electrical load analysis
· 175.0 kW
· Diesel/MDO/MGO
engine_model: 6CTA8.3-DM
cylinders: 6
configuration: inline
displacement_l: 8.3
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO', 'MGO']
application: marine generator drive
Common Failures:
- • Aftercooler fouling causing high exhaust temperature
- • Turbocharger oil leakage after high-hour service
- • Fuel injector wear causing smoke and rough running
Service: Daily checks include oil, coolant, leaks and exhaust temperature. Perform oil/filter and fuel filter service at Cummins recommended intervals; inspect aftercooler and heat exchanger periodically.
Spares: Recommended spares include filters, impeller kit, belts, injector seals, thermostats and turbocharger gasket kit.
Cummins QSB7-DM Marine Generator Set
Per ship electrical load analysis
· 195.0 kW
· Diesel/MGO
engine_model: QSB7-DM
cylinders: 6
configuration: inline
displacement_l: 6.7
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator drive
Common Failures:
- • Electronic sensor faults causing alarms or derating
- • Seawater pump seal leakage
- • Injector fouling after contaminated fuel
Service: Follow Cummins marine maintenance schedule. Regular oil sampling, filter changes and seawater circuit checks are recommended; run at adequate load to avoid wet stacking.
Spares: Keep ECM sensors, filters, belts, seawater pump kit, injector seals and common electrical spares.
Cummins QSL9-DM Marine Generator Set
Per ship electrical load analysis
· 264.0 kW
· Diesel/MGO
engine_model: QSL9-DM
cylinders: 6
configuration: inline
displacement_l: 8.9
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator drive
Common Failures:
- • Charge-air cooler fouling
- • Injector leakage or poor spray pattern
- • Cooling circuit fouling causing high temperature trips
Service: Perform scheduled oil, filter and valve train service according to Cummins manual. Periodic load-bank testing is recommended for standby or lightly loaded units.
Spares: Keep filters, belts, pump service kits, coolant hoses, injector seals, sensors and starter motor spares.
Cummins QSM11-DM Marine Generator Set
Per ship electrical load analysis
· 317.0 kW
· Diesel/MGO
engine_model: QSM11-DM
cylinders: 6
configuration: inline
displacement_l: 10.8
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator drive
Common Failures:
- • Injector wear causing misfire and exhaust temperature spread
- • Turbocharger fouling from low-load operation
- • Heat exchanger scaling in seawater service
Service: Use trend monitoring for exhaust temperatures and oil analysis. Conduct oil/filter changes and valve adjustment according to Cummins marine schedule.
Spares: Recommended spares include filter sets, injector seals, seawater pump kits, belts, sensors and turbocharger gasket sets.
Cummins KTA19-DM Marine Generator Set
Per ship electrical load analysis
· 448.0 kW
· Diesel/MDO
engine_model: KTA19-DM
cylinders: 6
configuration: inline
displacement_l: 19.0
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO']
application: marine generator drive
Common Failures:
- • Injector and PT fuel system wear causing unstable load sharing
- • Turbocharger fouling and oil leakage
- • Liner cavitation risk if coolant treatment is neglected
Service: Maintain coolant treatment and carry out oil analysis. Scheduled maintenance includes oil/filter service, valve and injector setting, turbocharger inspection and cooling system checks.
Spares: Keep PT fuel system service parts, injector sets, filter kits, coolant treatment chemicals, water pump kit and turbocharger service kit.
Cummins KTA38-DM Marine Generator Set
Per ship electrical load analysis
· 880.0 kW
· Diesel/MDO
engine_model: KTA38-DM
cylinders: 12
configuration: V
displacement_l: 37.8
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO']
application: marine generator drive
Common Failures:
- • Cylinder head gasket leakage on high-hour units
- • Turbocharger fouling from poor combustion
- • Fuel injector wear causing high exhaust temperature deviation
Service: Daily checks should include crankcase oil level, coolant, fuel leaks and exhaust temperature spread. Follow Cummins schedule for valve/injector setting and major overhaul planning.
Spares: Carry filters, injector components, cylinder head gaskets, water pump repair kit, turbocharger kit and critical sensors.
Cummins KTA50-DM Marine Generator Set
Per ship electrical load analysis
· 1100.0 kW
· Diesel/MDO
engine_model: KTA50-DM
cylinders: 16
configuration: V
displacement_l: 50.3
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MDO']
application: marine generator drive
Common Failures:
- • Injector wear causing exhaust temperature spread
- • Turbocharger seal leakage
- • Cooling system fouling causing high jacket-water temperature
Service: Plan oil sampling and valve/injector setting by running hours. Avoid prolonged low-load running; perform load tests and cooling system cleaning periodically.
Spares: Recommended spares include filter sets, injector and PT pump service parts, turbocharger kits, water pump kit, gaskets and sensors.
Cummins Onan MDKDN Marine Generator
Per ship electrical load analysis
· 13.0 kW
· Diesel
engine_model: None
cylinders: None
configuration: None
displacement_l: None
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel']
application: marine generator set
Common Failures:
- • Raw-water pump impeller failure
- • Heat exchanger fouling
- • Control board or sensor faults in humid spaces
Service: Follow Cummins Onan marine service schedule. Routine maintenance includes oil and filter changes, fuel filter service, impeller inspection and periodic load run.
Spares: Keep impeller kit, oil and fuel filters, belts, zincs if fitted, control fuses and starter solenoid.
Fischer Panda Panda 15000i PMS Marine Generator
Per ship electrical load analysis
· 12.0 kW
· Diesel
engine_model: None
cylinders: None
configuration: None
displacement_l: None
rpm: None
frequency_hz: 50
fuel_types: ['Diesel']
application: marine generator set
Common Failures:
- • Seawater pump impeller failure
- • Exhaust elbow corrosion
- • Inverter/control faults on variable-speed units
Service: Service oil, fuel filters, seawater impeller and coolant circuit according to Fischer Panda interval schedule. Check exhaust water injection and anti-siphon arrangement regularly.
Spares: Keep impeller kit, filters, belts, glow plugs, exhaust temperature sensor and inverter/control fuses.
John Deere 4045TFM85 Marine Generator Drive
Per ship electrical load analysis
· 74.0 kW
· Diesel/MGO
engine_model: 4045TFM85
cylinders: 4
configuration: inline
displacement_l: 4.5
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator drive
Common Failures:
- • Raw-water pump impeller failure
- • Injector fouling from contaminated fuel
- • Heat exchanger scaling
Service: Follow John Deere marine maintenance schedule. Routine service includes oil and filter changes, fuel filter service, belt inspection and cooling system checks.
Spares: Keep oil and fuel filters, impeller kit, belts, thermostat, injector seals and starter spares.
John Deere 6068AFM85 Marine Generator Drive
Per ship electrical load analysis
· 150.0 kW
· Diesel/MGO
engine_model: 6068AFM85
cylinders: 6
configuration: inline
displacement_l: 6.8
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator drive
Common Failures:
- • Injector wear causing smoke
- • Turbocharger fouling
- • Cooling water pump leakage
Service: Carry out oil/filter service, fuel filter replacement and cooling system inspection according to John Deere intervals. Periodic load testing is recommended.
Spares: Recommended spares include filters, impeller kit, belts, injectors or seals, thermostats and coolant hoses.
John Deere 6090AFM85 Marine Generator Drive
Per ship electrical load analysis
· 242.0 kW
· Diesel/MGO
engine_model: 6090AFM85
cylinders: 6
configuration: inline
displacement_l: 9.0
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator drive
Common Failures:
- • Aftercooler fouling
- • Injector wear
- • Electronic sensor faults causing alarms
Service: Follow John Deere marine schedule. Routine checks include oil level, coolant, fuel leaks, exhaust temperature trend and periodic ECU diagnostics.
Spares: Keep filters, belts, seawater pump kit, sensor spares, injector seals and thermostat kit.
John Deere 6135AFM85 Marine Generator Drive
Per ship electrical load analysis
· 350.0 kW
· Diesel/MGO
engine_model: 6135AFM85
cylinders: 6
configuration: inline
displacement_l: 13.5
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator drive
Common Failures:
- • Turbocharger fouling from light-load operation
- • Injector leakage or poor spray pattern
- • Cooling system fouling causing high temperature alarm
Service: Use periodic load testing and oil analysis. Follow John Deere intervals for oil/filter changes, valve lash checks and cooling system maintenance.
Spares: Recommended spares include filter kits, belts, water pump kit, injector seals, sensors and turbocharger gasket kit.
Kohler Marine Kohler 40EFOZDJ Marine Generator
Per ship electrical load analysis
· 40.0 kW
· Diesel
engine_model: None
cylinders: None
configuration: None
displacement_l: None
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel']
application: marine generator set
Common Failures:
- • Seawater pump impeller failure
- • Heat exchanger fouling
- • Starter and solenoid faults after humid engine-room exposure
Service: Typical routine maintenance includes oil/filter service, fuel filter replacement, impeller inspection and load testing according to Kohler manual.
Spares: Keep impeller kit, filter kit, belts, zinc anodes if fitted, starter solenoid and control fuses.
MTU Series 60 Marine Generator Set
Per ship electrical load analysis
· 300.0 kW
· Diesel/MGO
engine_model: MTU Series 60
cylinders: 6
configuration: inline
displacement_l: 14.0
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator set
Common Failures:
- • Injector and electronic control faults on high-hour units
- • Turbocharger fouling
- • Cooling system fouling causing high temperature alarms
Service: Follow MTU maintenance schedule. Regular service includes oil and filter changes, valve adjustment, coolant checks and periodic load testing.
Spares: Keep filter kits, injector seals, sensors, belts, water pump components and starter motor spares.
MTU 12V 2000 M41A Marine Generator Set
Per ship electrical load analysis
· 760.0 kW
· Diesel/MGO
engine_model: 12V 2000 M41A
cylinders: 12
configuration: V
displacement_l: None
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator set
Common Failures:
- • Injector faults causing rough running
- • Charge-air cooler fouling
- • Coolant leakage at hose and gasket joints
Service: Follow MTU running-hour service plan. Routine maintenance includes oil and filter service, valve clearance checks, coolant testing and electronic diagnostics.
Spares: Keep MTU filter kits, sensors, belts, injector sealing kits, coolant hoses and starter motor spares.
MTU 16V 2000 M41A Marine Generator Set
Per ship electrical load analysis
· 1000.0 kW
· Diesel/MGO
engine_model: 16V 2000 M41A
cylinders: 16
configuration: V
displacement_l: None
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator set
Common Failures:
- • Turbocharger fouling after light-load service
- • Injector wear causing cylinder imbalance
- • Sensor faults causing alarm or derating
Service: Carry out oil/filter service and ECU diagnostics according to MTU intervals. Avoid extended no-load or very low-load operation.
Spares: Recommended spares include filter sets, injector seals, coolant hoses, belts, turbocharger gaskets and electronic sensors.
MTU 12V 4000 M23S Marine Generator Set
Per ship electrical load analysis
· 1650.0 kW
· Diesel/MGO
engine_model: 12V 4000 M23S
cylinders: 12
configuration: V
displacement_l: None
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator set
Common Failures:
- • Injector faults causing exhaust temperature deviation
- • Turbocharger fouling
- • Charge-air cooler contamination
Service: Follow MTU service schedule with oil analysis, valve checks, filter changes and scheduled major component inspections.
Spares: Keep filter kits, injector service parts, sensors, coolant pump parts, belts and turbocharger gasket sets.
MTU 16V 4000 M23S Marine Generator Set
Per ship electrical load analysis
· 2200.0 kW
· Diesel/MGO
engine_model: 16V 4000 M23S
cylinders: 16
configuration: V
displacement_l: None
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel', 'MGO']
application: marine generator set
Common Failures:
- • Turbocharger fouling under low-load profile
- • Injector wear causing uneven cylinder load
- • Cooling system fouling causing high temperature derating
Service: Use MTU service schedule and diagnostics. Routine maintenance includes oil/filter changes, coolant testing, valve checks and periodic load-bank testing.
Spares: Recommended spares include MTU filter kits, injector seals, sensors, starter spares, cooling pump kit and turbocharger service parts.
MacGregor Finland Oy Twistlock CV-20 Forged Shaft, Twistlock CV-20L Lifting Forged Shaft
Per ship electrical load analysis
· Electrical Power Generation
source: dnv-approval-finder
Common Failures:
- • Generatorwicklung-Isolationsdegradation
- • AVR Spannungsregler-Fehlfunktion
- • Kupplung Schwingungsdämpfer Verschleiß
- • Gleichstrommaschine Bürstenverschleiß
Service: Generator-Isolationstest jährlich. AVR-Kalibrierung jährlich. Kupplung-Inspektion alle 5 Jahre. Ölwechsel per Herstellerangabe.
Spares: Ersatzteile über MacGregor Finland Oy oder zugelassene Vertriebspartner. Lead time: 2-6 Wochen.
MacGregor Finland Oy Twistlock CV-20G Forged Shaft, Twistlock CV-20G Lifting Forged Shaft
Per ship electrical load analysis
· Electrical Power Generation
source: dnv-approval-finder
Common Failures:
- • Generatorwicklung-Isolationsdegradation
- • AVR Spannungsregler-Fehlfunktion
- • Kupplung Schwingungsdämpfer Verschleiß
- • Gleichstrommaschine Bürstenverschleiß
Service: Generator-Isolationstest jährlich. AVR-Kalibrierung jährlich. Kupplung-Inspektion alle 5 Jahre. Ölwechsel per Herstellerangabe.
Spares: Ersatzteile über MacGregor Finland Oy oder zugelassene Vertriebspartner. Lead time: 2-6 Wochen.
Nanni Nanni QLS 32T Marine Generator
Per ship electrical load analysis
· 24.0 kW
· Diesel
engine_model: None
cylinders: None
configuration: None
displacement_l: None
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel']
application: marine generator set
Common Failures:
- • Raw-water pump impeller failure
- • Heat exchanger fouling
- • Exhaust mixing elbow corrosion
Service: Routine service includes oil/filter change, fuel filters, impeller inspection and coolant checks according to Nanni schedule.
Spares: Keep impeller kit, filters, belts, zincs if fitted, thermostat and glow plugs.
Northern Lights M944W Marine Generator Set
Per ship electrical load analysis
· 20.0 kW
· Diesel
engine_model: M944W
cylinders: 4
configuration: inline
displacement_l: None
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel']
application: marine generator set
Common Failures:
- • Raw-water pump impeller damage
- • Heat exchanger fouling
- • Fuel lift pump or injector wear on high-hour units
Service: Follow Northern Lights maintenance schedule. Routine tasks include oil/filter change, fuel filter change, impeller inspection and valve adjustment at specified hours.
Spares: Keep impeller kit, filters, belts, zincs if fitted, thermostat, fuel lift pump and starter spares.
Northern Lights M1066 Series Marine Generator Set
Per ship electrical load analysis
· 80.0 kW
· Diesel
engine_model: M1066
cylinders: 6
configuration: inline
displacement_l: None
rpm: 1500
frequency_hz: 50
fuel_types: ['Diesel']
application: marine generator set
Common Failures:
- • Raw-water pump leakage
- • Heat exchanger scaling
- • Injector wear causing smoke
Service: Routine service includes oil/filter changes, fuel filters, belt checks, impeller replacement and valve adjustment according to Northern Lights schedule.
Spares: Keep filters, impeller kit, belts, injectors or nozzles, thermostat, hoses and starter motor spares.