3D drawing Wärtsilä Steerable Thruster WST 32FP
Wärtsilä Steerable Thrusters

Ideal solution for offshore vessels and tugs.

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Wärtsilä steerable thrusters for competitive operating environments

Wärtsilä Steerable Thruster (WST) is ideal for offshore vessels, tugs, double ended ferries and river-going vessels, for example. WSTs are extremely efficient and deliver high hydrodynamic performance. Because they have been designed for better access, they are easier to maintain and service.

Steerable thruster family from Wärtsilä

Make your choice from a complete family of steerable thrusters ranging from 700 kW to 4900 kW, and your vessels can exceed the performance levels required in today's competitive operating environment.

The latest addition to the steerable thruster family is the WST-18E, launched in April 2024.


Find the family of WST steerable thrusters in the graph, which also shows the power range for each type:

graph showing the Wärtsilä Steerable thrusters family

Why steerable thrusters from Wärtsilä?

You can put your trust on the industry’s widest range of steerable thrusters. The portfolio, technology, and the hydrodynamic expertise make it possible to design and deliver optimal thruster solutions that will fit your exact needs.
You will have excellent choices:

  • A wide power range of thrusters
  • A variety of configuration options for propeller, nozzle, drive layout, auxiliaries, and more
  • Electric drive inputs or mechanical drive inputs, including high speed engines up to 1800 rpm.

Wärtsilä thrusters are robust and reliable. They deliver superior hydrodynamic performance for maximum propulsion efficiency, dynamic positioning capability or high bollard pull.

Your tailored thruster solution will have:

  • Compact dimensions with a high level of integration
  • Reliable propeller shaft and steering seals with monitoring
  • Design that is very maintenance friendly – this will minimise downtime
  • Field bus technology and reduced number of external connections for easier installation
  • Wärtsilä ProTouch controls with ergonomic levers and an intuitive touch screen display or push button panels for indoor or outdoor use.

    WST for electric drive

    WST for mechanical drive

    Customer cases

    Discover the benefits others have already gained from efficient, high-performing thrusters.

    • Nor Valiant
      Nor Valiant

      Delivered in 2008, the 78m ROV / Subsea Vessel Nor Valiant is a highly specialized vessel designed by Wärtsilä Ship Design for a wide range of subsea support work.

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    • RRS Discovery
      RRS Discovery

      The Royal Research Ship Discovery is designed to support the multidisciplinary research required for the 21st century. The ship is the fourth vessel to bear the name and continues the tradition of oceanographic research at sea.

      Read more
    • Stadt Valiant

      The Valiant is a 90 BP escort tug powered by two Wärtsilä 8L26 engines, and is well suited for missions such as offshore terminal assistance and coastal towing.

      Read more

    Insights on thrusters and propulsion

    Discover these insightful articles – an easy way for you to build your knowledge of thrusters and other propulsion solutions.

    Heavy Lift Jack-Up Vessel
    30 Nov 2023 · Article
    6 min read
    Retractable thrusters: five features that matter when station keeping in offshore operations
    Station keeping is essential for offshore vessels –...
    The right bow thruster will minimise vessel resistance
    9 May 2023 · Article
    4 min read
    How the right bow thruster can increase efficiency and save you money
    Choosing the cheapest bow thruster may be a costly mistake. Learn the three...
    Trusted thruster performance
    15 Mar 2021 · Article
    3 min read
    Trusted thruster performance – 50 years of maneuverability and station keeping
    When it comes to thrusters it’s all about maneuvering and station...

    Contact us today to learn more about how the steerable thrusters from Wärtsilä could revolutionise your vessel's performance and ensure your maritime business success.

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