MTU Diesel Engines 20V 4000 M73/M73L for Fast Vessels with High Load Factors (1B)

Product catalog summary

Overview: The document provides technical specifications for the Marine Diesel Engines 20V 4000 M73 and M73L, designed for fast vessels with high load factors. These engines are suitable for applications such as ferries, monohulls, hydrofoils, catamarans, surface effect ships, and yachts.

Dimensions and Masses: The 20V 4000 M73/M73L engines have dimensions of 3930x1465x2440 mm and a dry mass of 12080 kg. When equipped with a gearbox, the dimensions are 5535x1465x2610 mm, with masses of 13570 kg for the M73/ZF 9055 and 14785 kg for the M73L/ZF 23560 C.

Engine Specifications: Both models have 20 cylinders with a bore/stroke of 170/190 mm and a total displacement of 86.2 liters. The M73 model has a rated power of 3200 kW at 1970 rpm, while the M73L offers 3600 kW at 2050 rpm. Both engines comply with IMO 2 and EPA 2 emission standards.

Standard Equipment: Key features include a 24V electric starter, integral lube-oil pump, Common Rail injection system, MTU split-circuit cooling system, water-cooled charge-air pipework, and a triple-walled exhaust system. The engines are equipped with an ADEC engine management system and meet SOLAS safety requirements.

Optional Equipment: Options include an air starter, oil level monitoring, engine coolant preheater, auxiliary PTO, and various gearbox options. Classification extensions are available for ABS, BV, CCS, CR, DNV, GL, KR, LR, NK, and RINA.

Fuel Consumption: At rated power, the M73 consumes 213 g/kWh (821.2 l/h), while the M73L consumes 212 g/kWh (919.5 l/h), with a tolerance of +5% per ISO 3046.

Additional Information: Specifications are subject to change, and all dimensions are approximate. For complete details, refer to installation drawings or consult an MTU distributor.

Catalog excerpts

MTU Diesel Engines 20V 4000 M73/M73L for Fast Vessels with High Load Factors (1B)-1

for Fast Vessels with High Load Factors (IB) Typical applications: Ferries, monohulls, hydrofoils, catamarans, surface effect ships and yachts Engine Model Rated power ICFN Displacement, total Flywheel housing Gearbox type ; 1 ) IMO - International Maritime Organization (MARPOL) 2) gearbox variants "Down Angle (A)" and "V-Drive" available on request Power. Passion. Partnership.

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MTU Diesel Engines 20V 4000 M73/M73L for Fast Vessels with High Load Factors (1B)-2

Fuel Consumption ' Tolerance +5% per ISO 3046, Diesel fuel to DIN EN 590 with a min L.H.V. of 42800kJ/kg (18390 BTU/lb) Standard Equipment Starting system Fuel system Cooling system Exhaust system Engine mounting Power transmission Engine management system Engine safety system Optional Equipment Cooling system Engine management Monitoring and control system Gearbox options ntegral lube-oil pump; automatic oil filter (16/20V), centrifuge , lube oil-heat exchanger, pump for oil extraction, priming system Fuel delivery pump, fuel duplex filter (switchable), Common Rail injection system with HP pump,...

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