Marine Diesel Engines

mtu Series 4000

mtu diesel engines provide reliable solutions for all of your marine needs.

More than 20 years ago, in 1996 the first mtu Series 4000 marine engine was presented at SMM exhibition in Hamburg. Since then, the mtu Series 4000 is trusted in numerous applications. With more than 58,000 Series 4000 engines sold worldwide we gained experience from more than 345,000,000 operating hours which were directly fed into the development of the next generation of our marine workhorses.

This is just as true today, as it was in 1996 when we introduced the first high speed diesel engine with common rail fuel injection. Since 2016, we have the only high-speed diesel engine for hard workboat applications with a power output of up to 4300 kW (5780 hp).

Maximum uptime

All systems are designed for maximum reliability and availability.

Customized Solutions

Propulsion systems engineered to match the requirements of your towing vessels.

Green technology

A pioneer in developing environmentally friendly engines and reducing emissions.

Expert engineering support

Providing extensive analysis, risk mitigation services and integrated interfaces.

Lifecycle Costs

Maximize availability and optimize lifecycle costs with a ValueCare Agreement.

ValueCare service

Protect your investment with mtu-certified technicians, genuine parts and training.

Legendary. Since 1996.

Our Series 4000 M05 for commercial marine applications is the latest marine engine of the powerful Series 4000 family. When designing the Series 4000 M05 we kept three topics always in our mind: Life-cycle- costs, perfomance and ease of maintenance.
We used our legendary IRONMEN engines as a basis but finetuned it with high attention to detail to maximize durability, performance and efficiency. Some examples: we changed the alloy of the piston ring to reduce wear. We also relocated fuel filters to grant optimal servicability.

Additionally the air filters are now integrated in the outline of the engine which makes the Series 4000 M05 even more compact. We used advanced simulation of the combustion process to reduce particulate matter inside the engine which makes the need for an additional DPF redundant. Only SCR is needed to fulfill IMO III and EPA Tier 4 emissions regulations.

mtu Series 4000 key features at a glance *

Starting system

Electric starter motor 24V, 2 pole

Cooling system

Separate high and low temperature cooling circuit (engine version for separate heat exchanger), gear driven coolant circulation pumps

Turbocharging system

Engine coolant temperature-controlled intercooler, turbocharging with 2 water-cooled turbochargers, on-engine seawater-resistant air filters, intake air silencer (16V/20V)

Oil system

Gear driven lube oil pump, switchable oil filter, centrifugal oil filter, lube oil heat exchanger, closed crankcase ventilation

Exhaust system

Triple-walled, liquid-cooled, on-engine exhaust manifolds, 30° (upwards against horizontal) elbows discharge, exhaust bellow

Inclination

Designed for up to max. 45 ° rolling

Fuel system

Fuel delivery pump, duplex fuel filter with diverter valve, common rail fuel injection system with high-pressure pump, pressure accumulator and electronic fuel injection with cylinder cutout system, jacketed HP fuel lines, flame-proof hose lines, leak-off fuel monitoring, switchable pre-filter with water separator in conjunction with switchable additional secondary filter

Mounting system

Resilient engine mounting

Compliance with emission regulations

  • IMO II
  • IMO III with SCR
  • EPA 3 recreational
  • EPA 4 with SCR

Engine management system

Engine control and monitoring system (ADEC); engine interface module - EIM, engine mounted, expansion in ompliance with extended scope of monitoring

Monitoring / control system

mtu NautIQ Core/ mtu NautIQ Master/ mtu NautIQ Foresight

* dependent from configuration

Power Generation Product Finder

Check out the new product finder with power, emissions and application filters.

Low emissions. Maximum flexibility.

As installation space is always restricted inside the engine room, the inhouse developed airless SCR (Selective Catalytic Reduction) solution from mtu is compact and maintenance friendly. Besides easily accessible doors for replacement of the SCR catalysts, the system also features an integrated mixing pipe and dosing units. The integrated mixing pipe and DEF (Diesel Exhaust Fluid) dosing allows the shipyard highly flexible pipework between the engine and the SCR box. Additional space to fit the exhaust gas aftertreatment is reduced to a bare minimum. Amonia slip is prevented under all operating conditions by a closed loop regulated control system.

When using EGR (Exhaust Gas Recirculation) technology, the quality of the fuel is essential. Fuel with more than 15 ppm sulfur will lead to the formation of sulfur acid in the EGR cooling process. Sulfur acid will cause substantial engine failures over time. As many vessels operate worldwide, especially in the offshore service and supply business, mtu evaluates SCR as the preferred solution to maintain reliability of our engines and the safety of your vessel and crew. SCR technology allows operation with lower fuel quality.

SCR box

Available as vertically or horizontally arranged SCR box. Or SCR box designed as a cube, for assembling in horizontal direction.

Maintenance doors

The maintenance doors allow easy replacement of the SCR catalyst.

Dosing units

The two DEF dosing units work airlessly and are built into the SCR box.

Mixing pipe

The integrated mixing pipe allows highly flexible piping between the engine and the SCR box and saves installation space.

1

SCR box

Available as vertically or horizontally arranged SCR box. Or SCR box designed as a cube, for assembling in horizontal direction.

2

Maintenance doors

The maintenance doors allow easy replacement of the SCR catalyst.

3

Dosing units

The two DEF dosing units work airlessly and are built into the SCR box.

4

Mixing pipe

The integrated mixing pipe allows highly flexible piping between the engine and the SCR box and saves installation space.

Sustainable fuels make internal combustion engines cleaner

Modern power-to-X technologies use green electricity in electrolysis to produce hydrogen. Using C02 from the air or biomass, this hydrogen is converted into e-fuels such as e-methane, e-methanol or e-diesel. Power-to-X technology makes the C02-neutral cycle possible. By 2023, our leading series will be able to run on sustainable fuels such as e- and second-generation biofuels. In parallel, our developers are working on hydrogen and methanol engines.

Encapsulation and Mounting

Sound encapsulation and engine mountings for marine engines involves the strategic implementation of soundproofing materials and design modifications to reduce noise emissions from the engine compartment. This process aims to contain the noise at its source, preventing it from escaping and propagating through the water and surrounding environment. Depending on the application different targets can be achieved such as raised passenger comfort in yachts to enhanced tactical advantages for frigates based on the lower noise levels. mtu engines can optional be equipped with enhanced mounting and sound encapsulation technologies and contracted sound levels via our internal engineering experts.

Propulsion solutions

We are a leader in the field of propulsion systems with low magnetic and acoustic signatures, allowing us to reduce the magnetism of all ferromagnetic parts with our own method to a stable minimum.

Power Generation Product Finder

Check out the new product finder with power, emissions and application filters.

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