M92B Marine Diesel Engine

Commercial M92B

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Key Specs

Minimum Power
85.8 HP
64 kW
Maximum Power
85.8 HP
64 kW
4.1 in
105 mm


With excellent power-to-weight ratios, our engines give boat designers and fitters all the flexibility they need when it comes to new boat design or re-power installations for pleasure craft.

They offer excellent reliability and fuel economy, while being clean, quiet and smooth in operation. Low noise, rapid starting and low emissions are achieved with advanced combustion systems that allow for precise, multiple injections within each combustion cycle, reducing fuel use and lowering emissions.

Product Specifications for M92B

Minimum Power 85.8 HP 64 kW
Maximum Power 85.8 HP 64 kW
Maximum Torque 227.2 lb-ft @ 1200 rpm 308 Nm @ 1200 rpm
Rated Speed 2400 rpm 2400 rpm
Bore 4.1 in 105 mm
Stroke 5 in 127 mm
Displacement 268.5 in³ 4.4 l
Aspiration Naturally aspirated Naturally aspirated
Rotation from Flywheel End Anti-clockwise Anti-clockwise
Total Coolant Capacity 5 gal (US) 19 l
Number of Cylinders 4 inline 4 inline
Combustion System Direct injection Direct injection
Cooling System Liquid Liquid
Compression Ratio 18.23:1 18.23:1
Cycle 4 stroke 4 stroke
Total Lubricating Capacity 1.8 gal (US) 7 l
Width 27 in 688 mm
Dry Weight 877.4 lb 398 kg
Length - Flywheel Housing 32.4 in 823 mm
Wet Weight 932.6 lb 423 kg
Height 33.6 in 853 mm
Note 1 Final dimensions dependent on selected options Final dimensions dependent on selected options

M92B Standard Equipment

Air inlet system

  • Air intake filter
  • Fresh water cooled exhaust manifold, intake manifold and heat exchanger
  • Totally enclosed engine breather

Control system

  • Alarm switches and warning siren
  • Manual control adaption parts

Cooling system

  • Fresh water heat exchanger cooled engine with gear driven self priming raw water and fresh water pumps or keel cooling adaption

Fuel system

  • High mounted single element fuel filter


  • Base engine

Oil system

  • High inclination engine sump with sump drain pump
  • Inverted element lube oil filter
  • Transmission oil cooler