High-speed marine power with the MAN 175D
MAN 175D - The most powerful high-speed engine
State-of-the-art technology for your business
The MAN 175D diesel engine is a V type, available with 12, 16 or 20 cylinders, with 175 mm bore for mechanical or electric propulsion and onboard power generation. Running from 1,500 to 2,000 rpm, it features ratings from 1,440 to 4,400 kW.
The robust and reliable engine design with high-efficiency MAN turbochargers features, amongst other things, an integrated lubrication system with electrical pre-lubrication, and high- and low-temperature split cooling circuits with integrated pumps and thermostats. The advanced MAN SaCoSone safety and control system ensures safe monitoring, control, and operation of the engine.
Timelapse video: manufacturing of an MAN 175D engine
Powering a vast number of applications
Advanced efficiency for surveillance, business or pleasure

Offshore, tug, ferry, navy, yacht and fishing
Whether the MAN 175D is used for naval and governmental vessels, offshore, tugs, ferries, yachts or for the fishing sector – the 175D is worth a closer look. It is ideal for high cost-effectiveness, as it combines high output, quick acceleration, and dynamic partial-load operation with economical endurance.
Flexible and modularized by design
Packing the latest technology into minimal space, the MAN 175D is characterized by a clear-cut design, flexible ship integration, simple operation, and straightforward maintenance. Its modular design allows it efficiently to meet all the challenges of today’s different applications.


Explore the MAN 175D engine in 3D, and discover key features
Check our latest Interactive Product Experience and discover the MAN 175D and it’s most interesting features which are embedded in a 3D application. The application is best viewed on a PC or Android device.
Unfold our MAN 175D solutions to your needs
MAN 175D Propulsion
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With the latest engine technology and reduced space, the MAN 175D propulsion engine offers a clear-cut design: Easy to commission, easy to operate, and easy to service. Its modular design allows it to meet all the challenges of many different applications.
Benefits at a glance:
- Low fuel oil consumption
- Low operating costs
- Low life cycle costs
- Long service life
MAN 175D GenSet
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Featuring compact integration of the latest technology, the MAN 175D GenSet is characterized by a clear-cut design, flexible ship integration, easy installation, simple operation, and straightforward maintenance. Its modular design allows it to meet all the challenges of today’s different applications.
Benefits at a glance:
- Low fuel oil consumption
- Low operating costs
- Low life cycle costs
- Long service life
Compact SCR for IMO Tier III

To deliver a very compact and cost-effective design, the MAN 175D SCR system is based on the most cutting-edge technology. Its great strengths are its flexible arrangement and compactness which optimize the space typically available in confined engine rooms.
With an excellent power-to-weight ratio, airless operation, and closed-loop NOx emission control, the MAN 175D SCR offers a very competitive solution for IMO Tier III applications. Due to its IMO NOx Scheme A certification procedure, the system can be installed directly without further onboard confirmation tests.
Go to emission controlCP Propellers

Our state-of-the art high-speed propulsion package: MAN Alpha CP propellers tailored with stern tubes, seals, tail shafts, intermediate shafts, couplings, and the Alphatronic 3000 control system – optimized and fine-tuned for geared MAN 175D engines.
Benefits at a glance:
- High efficiency and low noise
- Low operating costs
- Low installation costs
- Superior package value
Alphatronic Propulsion Control

Our state-of-the-art propulsion control system: The Alphatronic 3000 controls both MAN Alpha CP and FP propeller packages – for geared MAN 175D engines.
Benefits at a glance:
- Safe and reliable ship manoeuvres
- Optimal load and speed control
- Reduced fuel consumption
- Logical touch screen and user interfaces
- Easy installation of modularized components
Hybrid marine solutions

MAN Energy Solutions offers a number of different hybrid solutions related to propulsion power and auxiliary power. Thanks to the partnership with Aspin Kemp & Associates (AKA), we can provide complete, single-source solutions for electric battery hybrid propulsion. We have the available products, expertise in system integration, and a full system portfolio.
Go to hybrid propulsion for tugsNews
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Tuesday, January 31, 2023
MAN Energy Solutions Signs Memorandum of Understanding with SH Defence
MoU with Danish defence company covers development of ‘The Cube’ system for loading vessels with containerised payloads -
Thursday, September 22, 2022
Wider Chooses MAN 175D for Latest Generation of Hybrid-Propulsion System
Propulsion set-up delivers record-low fuel-consumption for Wider projects -
Thursday, September 15, 2022
Austal Chooses MAN 175D Propulsion for New High-Speed Catamaran Ferry
MAN PrimeServ service decisive factor for French Polynesian operation -
Monday, April 25, 2022
Sanmar Shipyards Choose MAN 175D for New Svitzer TRAnsverse Tug Design
Sanmar Shipyards in Turkey have placed an order for a pair of MAN 12V175D-MM marine prime movers. The 2 x 2,040 kW-rated propulsion engines were selected to provide power for a new generation 60 TBP TRAnsverse tug. Both engines will be supplied along with MAN Energy Solutions’ versatile and efficient SCR exhaust gas after-treatment system, enabling the vessel to meet IMO Tier III emission standards.
MAN PrimeServ provides 24/7 service across the globe
Our range of services includes technical support, consulting and OEM spares, as well as maintenance, repair and comprehensive individualized service plans.
How you benefit:
- Prompt delivery of high-demand OEM spare parts within 24 hours
- Fast, reliable, and competent customer support
- Ongoing training and qualification of operators and maintenance staff
- Diagnosis and troubleshooting with our high-performance online service.
PrimeServ Assist - Reduce your OPEX
Our experts pro-actively support you in the operational decision-making process to help you meet your service-level agreements and to reduce OPEX – via minimized:
- Unexpected downtime
- Performance degradation
- Maintenance costs