Meeting situation of ship designers
Essential solutions for naval architects and ship designers

Discover the best engine specifications, data and insights for ship designers. Access Wärtsilä’s comprehensive guides, tools, and advanced technologies for optimal vessel design.

Essential solutions and specifications for ship designers

Learn more about the latest solutions and technologies and really shine in front of your customers. You can ensure optimal vessel design and best service with the help of this information.

How to compare ship engines 

Evaluating competing claims and data from different manufacturers can be challenging. Insider’s guide to ship engines has 11 practical tips that will help you. This comprehensive guide covers what you need to know about marine engine specifications and ship engine specs. Download now and learn how to make the best choice of engine for the vessel’s whole lifetime.

Explore the handy engine configurator

Use this handy tool to identify the perfect engine for the vessel you want to design. You can find the right engine in a few easy steps!

Configure now

Wärtsilä employees in front of an engine

Flexible engine solutions for optimal designs

Wärtsilä’s flexible engines are an excellent starting point when designing a vessel. Whether you need a diesel-mechanic, diesel-electric, or hybrid solution, we have the data and supporting information you need.

Start from the most popular engines

Wärtsilä 25

Wärtsilä 25 is a medium-speed, modular 4-stroke marine engine available in diesel, dual-fuel LNG and in dual-fuel ammonia version.

  • Ship engine specs: High efficiency, low fuel consumption, low emissions, flexible fuel options
  • Power output range: 1.7 - 3.4 MW
  • Reference: James Fisher and Sons PLC tankers

Wärtsilä 31

The Wärtsilä 31 holds the Guinness World Record for the most efficient 4-stroke diesel engine. It is available in diesel, dual-fuel LNG and in pure gas versions and it is perfect for ferries, luxury cruise ships and fishing vessels.

  • Ship engine specs: High efficiency, low fuel consumption, low emissions, flexible fuel options
  • Power output range: 4.6-10.4 MW
  • Reference: Aurora Botnia ferry
3D rendering Wärtsilä 31 marine engine

Wärtsilä 46TS-DF

The Wärtsilä 46TS-DF is a two-stage turbocharged dual-fuel engine which offers superior performance. It is perfect for cruise ships and large ferries, and also serves as a modern, future-proof main engine for merchant vessels.

  • Ship engine specs: Dual fuel, high power density and efficiency, two-stage turbocharging, low fuel consumption, low emissions
  • Power output range: 7.8-20.8 MW
  • Reference: Royal Caribbean Cruise ships
3D rendering Wärtsilä 46TS-DF marine engine

Wärtsilä 32 Methanol Engine

The Wärtsilä 32 Methanol Engine is designed for efficient operations on a wide range of liquid fuels from heavy fuel oil to methanol. It is a perfect auxiliary engine for methanol-fuelled container vessels.

  • Ship engine specs: Fuel flexible from HFO to methanol, low emissions, high efficiency
  • Power output range: 7.8-20.8 MW
  • Reference: COSCO container ships
3D rendering Wärtsilä 32 Methanol marine engine

Get technical data to help you design Wärtsilä marine engine installations:

Browse the complete portfolio of ship engines

Other advanced technologies for modern vessels

Stay ahead with the latest technologies such as NextDF, energy-saving technologies, and hybrid solutions. These innovations not only enhance performance but also contribute to sustainability and cost-efficiency.

Engine references

Discover the benefits others have already gained from marine engines from Wärtsilä.

  • Louis Dreyfus Armateurs new RoRo vessel
    Louis Dreyfus Armateurs

    Methanol engines mean big cuts in emissions for Louis Dreyfus Armateurs‘ RoRos

    Read more about methanol engines
  • Van Oord

    Van Oord is accelerating the energy transition with its green ship fleet. Why did they choose methanol for their new offshore wind installation vessel?

    Read more why they choose methanol
  • Erik Thun AB

    Erik Thun Group’s four coastal tankers benefit from the Wärtsilä 25 engine and can achieve high environmental performance in the long term.

    Learn more
  • detail image of cruise liner with rescue boats
    Royal Caribbean Group

    When Royal Caribbean Group became the first customer for the new Wärtsilä 46TS-DF engine, they knew the rewards it could bring. But what was needed to make sure that the engine’s full potential could be realised?

    Open the case study
  • Fure Viten

    With a range of integrated Wärtsilä solution onboard, Swedish tanker Fure Viten has already surpassed the IMO’s 2050 emissions targets.

    Read more about energy-saving devices
  • Le Commandant Charcot

    Le Commandant Charcot, the world’s only luxury icebreaker, uses the Wärtsilä 31DF engines for sustainable polar exploration

    Read more about Wärtsilä 31DF engine with hybrid operation
  • SAL Heavy Lift

    Wärtsilä hybrid propulsion system with methanol engine to power four future-proof heavy lift vessels

    Discover the Wärtsilä 32 methanol engine
  • Tugs Jin Gang Lun 31 & 32

    The Jin Gang Lun 31 and 32 are the first two tugs in Tianjin Port powered by a set of Wärtsilä’s highly efficient W20 engines.

    Read more about the Wärtsilä 20 engine

Wärtsilä’s innovative engines, technologies and tools can help you provide top-notch service to your customers. Get advice directly from a Wärtsilä expert!

Wärtsilä Marine. Let's connect.