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MTU

8V 4000 M63

The MTU 8V 4000 M63 is an eight‑cylinder medium‑speed marine diesel engine delivering roughly 1.84–2.08 MW at 1800 rpm, featuring common‑rail high‑pressure injection and sequential twin‑turbocharging for compact high‑power propulsion or generator applications.

1000.0 kW

Power

Engine Specifications

Cylinders

170 mm

Bore

190 mm

Stroke

1,000 kW

MCR Power

1800.0 rpm

MCR RPM

4-stroke

Stroke Type

Family: MTU (Rolls-Royce Power Systems) Series 4000 · Tier: IMO Tier II · Fuel: MDO, MGO

Other Cylinder Configurations 3

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

www.sbmarinemechanic.com/mtu-marine...

Turbocharger failures: Approximately 90% of turbocharger failures are caused by lubrication problems (oil throttling, contaminated oil, incorrect viscosity)

rpmdiesel.com/diesel-vessel-service...

Fuel contamination: Water in fuel, fouling and biological growth damage high-pressure common-rail injection systems (>2,000 bar)

rpmdiesel.com/diesel-vessel-service...

Water-cooled exhaust elbows: Internal corrosion and blockage of flow passages by corrosion products

www.sbmarinemechanic.com/mtu-marine...

Cooling system neglect: Fouled heat exchangers, detached sacrificial anodes (zinc), weak impellers lead to overheat events and cavitation

www.sbmarinemechanic.com/mtu-marine...

Type-general inspection and maintenance points for this equipment category — not model-specific.

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Equipment Model #38568 · ✓ still in production