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MTU
12V 4000 M73
The MTU 12V4000 M73 is a 12‑cylinder V‑type marine diesel engine delivering up to 2 160 kW at 1 800 rpm, renowned for its high power‑to‑weight ratio and common‑rail fuel injection.
2160.0 kW
Power
Engine Specifications
12
Cylinders
165 mm
Bore
190 mm
Stroke
2,160 kW
MCR Power
1800.0 rpm
MCR RPM
4-stroke
Stroke Type
Family: MTU (Rolls-Royce Power Systems) Series 2000
· Tier: IMO Tier II
· Fuel: MDO, MGO
Other Cylinder Configurations 29
8V 2000 M70
8 cyl
· 720 kW
8V 2000 M72
8 cyl
· 720 kW
8V 2000 M86
8 cyl
· 720 kW
8V 2000 M93
8 cyl
· 720 kW
8V 2000 M96
8 cyl
· 720 kW
10V 2000 M70
10 cyl
· 900 kW
10V 2000 M72
10 cyl
· 900 kW
10V 2000 M86
10 cyl
· 900 kW
10V 2000 M93
10 cyl
· 900 kW
10V 2000 M96
10 cyl
· 900 kW
12V 2000 M70
12 cyl
· 1,080 kW
12V 2000 M72
12 cyl
· 1,080 kW
12V 2000 M86
12 cyl
· 1,080 kW
12V 2000 M93
12 cyl
· 1,080 kW
12V 2000 M96
12 cyl
· 1,080 kW
12V 4000 M53
12 cyl
· 2,160 kW
12V 4000 M63
12 cyl
· 2,160 kW
16V 2000 M70
16 cyl
· 1,440 kW
16V 2000 M72
16 cyl
· 1,440 kW
16V 2000 M86
16 cyl
· 1,440 kW
16V 2000 M93
16 cyl
· 1,440 kW
16V 2000 M96
16 cyl
· 1,440 kW
16V 4000 M53
16 cyl
· 2,880 kW
16V 4000 M63
16 cyl
· 2,880 kW
16V 4000 M73
16 cyl
· 2,880 kW
20V 4000 M53
20 cyl
· 3,600 kW
20V 4000 M63
20 cyl
· 3,600 kW
20V 4000 M73
20 cyl
· 3,600 kW
20V 8000 M71
20 cyl
· 8,200 kW
Components & Design
Component data being added…
Technical Data
Bohrung
165-170 mm je Variante
Hub
190-210 mm je Variante
Leistungsbereich
746-4300 kW
Drehzahl
1600-2100 rpm
Zylinder pro Motor
8/12/16/20 cylinders
Hubraum
32-86 Liter je Konfiguration
Bremsleistung M90
2040 kW (12V), 2720 kW (16V)
Bremsleistung M73
1920 kW (12V), 2560 kW (16V), 3200-3600 kW (20V)
Bremsleistung M93
1680 kW (12V), 2240 kW (16V), 2800-3150 kW (20V)
Bremsleistung M63
1840-2080 kW (16V)
Trockengewicht 12V M93
8410 kg
Trockengewicht 16V M93
9600 kg
Trockengewicht 20V M73
12080 kg
Spezifischer Verbrauch M60
185 g/kWh
Spezifischer Verbrauch M63
195-203 g/kWh
Spezifischer Verbrauch M73
213-216 g/kWh
Spezifischer Verbrauch M93
224-230 g/kWh
Einspritzsystem
Common Rail, elektronisch gesteuert
Ventile pro Zylinder
4 valves per cylinder
Turboaufladung
Sequentielle Turboaufladung mit 2 wassergekuehlten Turboladern
Emissionen
IMO Tier II, EPA-konform, M05 mit SCR (IMO III, EPA Tier 4)
Treibstoff
Marinediesel ISO 8217
unified from engine model
True
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Common failures & inspection points
Raw water pump seals: Leaking raw water pumps lead to saltwater corrosion; leaking water can clog the seal bore and enter the bearing oil
Turbocharger failures: Approximately 90% of turbocharger failures are caused by lubrication problems (oil throttling, contaminated oil, incorrect viscosity)
Fuel contamination: Water in fuel, fouling and biological growth damage high-pressure common-rail injection systems (>2,000 bar)
Water-cooled exhaust elbows: Internal corrosion and blockage of flow passages by corrosion products
Cooling system neglect: Fouled heat exchangers, detached sacrificial anodes (zinc), weak impellers lead to overheat events and cavitation
Type-general inspection and maintenance points for this equipment category — not model-specific.
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Equipment Model #38555
· ✓ still in production