M 20 C Marine Propulsion Engine

M 20 C Marine Propulsion Engine

Developed and designed in response to special requirements of marine applications, the M 20 C is characterized by high reliability and economy. These features help to explain the continued high market demand for the M 20 C. The long-stroke design principle is the backbone of an excellent combustion process with low fuel and lubricating oil consumption, as well as low NOx emission. The M 20 C engine is SOLAS compliant. Its intelligent simplicity means high functional integration of fewer components. Fewer components mean greater reliability and easier maintenance. Overall, this leads to outstandingly low operating costs and rapid returns on investment. Reliability and ease of maintenance are convincing arguments in favor of the engines of this series.

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Power Rating

Power Range
1020-1800 kW

Engine Specifications

Speed Range
900-1000 rpm
Swept volume
Rotation (from flywheel end)
Inline 6,8,9 Cylinder

Dimensions & Weights

Minimum Dry Weight
Minimum Length
Maximum Length
Minimum Height
Maximum Height
Minimum Width
Maximum Width

Standard Equipment

  • Air Inlet System
    • Air intake silencer / filter
  • Control System
    • Load Sharing Unit (for multiple engine plant only)
    • Protection panel (emergency stop, override, reset push buttons)
    • Protection System
    • Serial Link Interface (MODbus RTU/canbus)
    • Speed governor
    • Start/Stop panel
  • Cooling System
    • Charge air cooler
    • Electronic cooling water preheater
    • HT cooling water pump (engine driven)
    • LT cooling water pump (engine driven)
  • Exhaust System
    • Exhaust gas expansion joint
    • Exhaust gas insulated manifolds
    • Turbocharger at flywheel side
  • Fuel System
    • Fuel circulating pump (attached / for MDO/MGO only)
    • Fuel indicator filter
    • Fuel pressure valve (separate / for MDO/MGO only)
  • Instrumentation
    • Control push buttons and lamps
    • Emergency stop lever
    • Local Control Panel
    • Pressure and temperature indicator
  • Lube System
    • Dry sump
    • Lube oil cooler
    • Lube oil pump (engine driven)
    • Lube oil self-cleaning filter
    • Pressure regulating valve
  • Mounting System
    • High flexible coupling
    • Rigid mounting
  • Starting System
    • Air starting motor
    • Manual barring device
  • General
    • Lifting device (rental)
    • Torsional Vibration Calculation (TVC)

Optional Equipment

  • Air Inlet System
    • Air inlet shut-off valve
    • Air intake transition piece
    • Expansion joint
    • Silencer / filter
  • Control System
    • Electronic speed governor
    • Engine alarm system
    • Remote control system
    • Remote indicators (start air pressure, engine speed, etc.)
    • Starter for electroc driven pumps
    • 24 DC UPS
  • Cooling System
    • FW/SW plate cooler
    • HT cooling water pump (electric driven)
    • LT cooling water pump (electric driven)
    • Sea water cooling pump (electric driven)
    • Steam / thermal oil cooling water preheater
    • Temperature control valve
  • Exhaust System
    • Silencer (with or without spark arrester)
    • Turbocharger at counter-flywheel side
  • Fuel System
    • Fuel oil cooler
    • HFO treatment and supply modules
    • HFO supply and booster pumps (electrical driven)
    • HFO self-cleaning automatic filter
    • HFO pressure regulating valve
    • HFO final preheater
    • HFO viscosity control device
    • Mixing tank
  • Lube System
    • Lube oil centrifuge
    • Lube oil pump (electrical driven)
    • Lube oil treatment and combined modules
    • Pre-lubricating oil sump (electrical driven)
    • Wet sump
  • Mounting System
    • Flexible pipe connections
    • Resilient mounting
  • Starting System
    • Starting air receiver
    • Starting air compressor
  • General
    • Cat Propulsion Systems
    • Engine PTO coupling
    • PTO alternator
    • PTO shaft on counter-flywheel side
    • Reduction gear
    • Reduction gear PTO coupling