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MTU

mtu Diesel Engine 8V 4000 M23/M33 – Marine Genset (3A/3B)

MTU mtu Diesel Engine 8V 4000 M23/M33 – Marine Genset (3A/3B) — On-board power generation and diesel-electric drive for yachts and commercial vessels. Application classes 3A (unrestricted continuous, 100% load factor) and 3B (variable load, ≤75%). Meets IMO II/EPA 2..

Components & Design

Component data being added…

Technical Data

power kW M23 1500rpm 760
power kW M23 1800rpm 920
power kW M33 1500rpm 880
power kW M33 1800rpm 1040
cylinders 8V
bore stroke mm 170/210
displacement L 38.2
weight kg 5610
dimensions mm 2135 x 1610 x 2055

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Common failures & inspection points

Engine oil level, oil pressure, and oil quality check including TBN analysis at defined service intervals

Engine oil level, oil pressure, and oil quality check including TBN analysis at defined service intervals

Coolant level, antifreeze concentration, and freshwater/seawater cooling circuit inspection for leaks and heat exchanger fouling

Coolant level, antifreeze concentration, and freshwater/seawater cooling circuit inspection for leaks and heat exchanger fouling

Fuel system inspection including fuel filters (pre- and main filter), fuel lines for leaks, and water separators

Fuel system inspection including fuel filters (pre- and main filter), fuel lines for leaks, and water separators

Turbocharger inspection: check intake air filter differential pressure, intercooler cleanliness, and turbo bearing condition

Turbocharger inspection: check intake air filter differential pressure, intercooler cleanliness, and turbo bearing condition

Drive belt and flexible coupling inspection for wear, tension, and alignment on generator end

Drive belt and flexible coupling inspection for wear, tension, and alignment on generator end

Generator insulation resistance (Megger test), exciter winding check, and bearing lubrication on the alternator

Generator insulation resistance (Megger test), exciter winding check, and bearing lubrication on the alternator

Engine management system (ADEC/ECU) fault memory read-out, sensor calibration check, and alarm/shutdown function test

Engine management system (ADEC/ECU) fault memory read-out, sensor calibration check, and alarm/shutdown function test

Exhaust system inspection including back-pressure measurement, flexible bellows condition, and SCR/catalyst element check where fitted

Exhaust system inspection including back-pressure measurement, flexible bellows condition, and SCR/catalyst element check where fitted

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

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Equipment Model #152941 · ✓ still in production