Diesel engine M92B

4-cylinderin-linedirect injection

Overview
With excellent power-to-weight ratios, the M92B marine diesel engine provides designers and installers flexibility for new builds and repower projects. It delivers reliable, fuel-efficient operation with low noise and smooth running. Advanced combustion enables precise multiple injections per cycle, reducing fuel consumption and emissions.

Features At A Glance

• Clean, quiet, smooth operation — improvements of up to 3 dBA over its predecessor achieved through product developments.
• Ease of installation — designed to permit a wide range of operating angles in both conventional and vee-drive installations.
• Ease of maintenance — easy access to all routine service points and service intervals of 500 hours.
• Excellent power-to-weight ratio — compact package offering boat design flexibility for new builds and repower installations.
• Lower operating costs — exceptionally low fuel consumption and fuel tolerance (including kerosene, jet aviation fuel and B20 biofuel (RME)).
• Reliability and durability — high-capacity heat exchanger with cupro-nickel tubestack; gear-driven engines and raw water pumps for reliable cooling and leak-free operation.

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 adaptation

Fuel system

• High mounted single element fuel filter

General

• Base engine

Oil system

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

Power Rating
Minimum Power: 64 kW
Maximum Power: 64 kW
Rated Speed: 2400 rpm
Maximum Torque: 308 Nm @ 1200 rpm

General (key engine data)
Bore: 105 mm
Stroke: 127 mm
Displacement: 4.4 l
Aspiration: Naturally aspirated
Rotation from flywheel end: Anti-clockwise
Total lubricating capacity: 7 l
Cooling system: Liquid
Compression ratio: 18.23:1
Total coolant capacity: 19 l
Number of cylinders: 4 inline
Combustion system: Direct injection
Cycle: 4 stroke

Engine Dimensions*
Width: 688 mm
Dry Weight: 398 kg
Length - Flywheel Housing: 823 mm
Wet Weight: 423 kg
Height: 853 mm

Disclaimer
Final dimensions dependent on selected options.

Technical specifications

• Model: M92B
• Minimum Power: 64 kW
• Maximum Power: 64 kW
• Rated Speed: 2400 rpm
• Maximum Torque: 308 Nm @ 1200 rpm
• Bore x Stroke: 105 mm x 127 mm
• Displacement: 4.4 l
• Number of Cylinders: 4 inline
• Aspiration: Naturally aspirated
• Combustion System: Direct injection
• Cycle: 4 stroke
• Compression Ratio: 18.23:1
• Cooling System: Liquid (fresh water heat exchanger)
• Total Lubricating Capacity: 7 l
• Total Coolant Capacity: 19 l
• Dry Weight: 398 kg
• Wet Weight: 423 kg
• Width: 688 mm
• Length (to flywheel housing): 823 mm
• Height: 853 mm
• Service intervals: 500 hours (routine service points easily accessible)