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The unique and robust MONOBLOCK design, engine block and cylinder head made from high grade alloy cast iron, without limitation in cooling and unrivaled roundness of the cylinder, give exceptional life time for the liner.


  • Chrome-Molybdenum forged crankshaft, dynamically balanced
  • Pistons are cast from high silicon aluminium with oil cooling gallery and a ceramic coated top ring
  • Hardened valve-seats high performance NIMONIC valve material
  • Elastic coupling on flywheel, design matched depending on application

Engine Mounting

  • Adjustable front and rear silent blocks capable to take propeller/jet thrust

Lubrication System

  • Exchangeable oil filter cartridge
  • Oil scavenging trough dipstick pipe
  • Closed crankcase breathing system

Fuel System

  • Integrated high pressure unit injector up to 2,000 bar with dual stage fuel injection technology, operated by overhead camshaft and rocker arms
  • Electric fuel pump (automatic bleeding capability)
  • Exchangeable fuel filter cartridge

Cooling System

  • Freshwater cooling system with thermostat control and expansion tank
  • Heat exchanger with integrated expansion tank system
  • Connection prepared for boiler/cabin heating system

Exhaust System

  • Fresh water cooled exhaust manifold and seater cooled exhaust elbow


  • RCD/2003/44 compliant
Engine rotation (looking forward)Anti-clockwise
Propeller rotation (looking forward)Anti-clockwise
Number of cylinders4
Net weight258
Engine typeMO144M38
Engine crankcase vent systClosed
Output [ps(kW)] acc. to ISO 8665106 (144)
rom@full load3800
Displacement [cc]2100
Max. torque [kgm]288
At speed [rpm]2500
Injection systemTwo stage unit injectors
Electronic engine diagnosticYES
Propulsion systemShaftdrive / Waterjet
Cylinders4 in line
4 Cylinder BrochurePDF2000 KBDownload
MO144M38 Torque CurvePDF2000 KBDownload
Owners ManualPDF2000 KBDownload