Your power
drives us.

Your professional OEM-independent service provider for combustion engines (Diesel and Gas) with a power range from 100 to 3000 kW. More power since 1932!

Service, maintenance up to general overhaul on site or in our factory for different engines:

  • natural gas engines
  • biogas engines
  • landfill gas engines
  • sewage gas engines


World wide repair service for all common 4 stroke diesel engines for:

  • sea going vessels and ships
  • locomotives, railway vehicles
  • farm machines, construction equipment
  • emergency generators


Machining and fabrication of machines and components. World wide service:

  • crankshaft grinding
  • mechanical machining of components
  • lineboring
  • manufacturing of slide bearings


World wide delivery of engines, components and spare parts for:

  • Industrial engines
  • Marine engines
  • emergency generators
  • pumps
  • spare parts and exchange parts



Are you ready for Fit for Flex?

Best Engine Quality and Service


Years of experience

More than 85 years of business


Worldwide service

24 hours daily, 7 days a week


Quality and safety

Certified with DIN EN ISO 9001

Our service: 24 hours per day, 7 days a week.

Worldwide Engine Service

Get to know all about our services. Proofed and certified quality for more performance.

service overview

Industial fields and branches

Get to know our branches and fields. Everywhere in the world.

Wulf Johannsen - A company with tradition since 1932

Since the cylinder and crankshaft grindery as been founded by Wulf Johannsen in Kiel in 1932 a lot of things has changed. But one thing has remained the same for four generations: the enthusiasm for providing the best first-class services to our costumers all over the world combined with flexibility and reliabilty every single day. Because only happy costumers and high-quality services made the success of the last 85 years possible.


News and Recent Informations

We say thank you!

10.09.2018 09:15

We would like to thank all visitors of the SMM for the many interesting...

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Merry Christmas

08.12.2014 11:23

We want to use the end of the year, to thank you for your trust in our...

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Career at Wulf johannsen

The extensive and proofed quality of services for more than 80 years tells its own tale.

Go to "Jobs"

Downloads and Information

Here you can find PDFs and Informations about our services.

Go to "Downloads"

Wulf Johannsen's Engine Services

Wulf Johannsen KG GmbH & Co. stands for experience, quality and tradition. In Kiel, Northern Germany, and even worldwide a team of 70 people is working for the company's clients.

As an OEM-independent service provider for combustion engines (Diesel and Gas) with a power range from 3 to 3.000 kW, Wulf Johannsen KG GmbH & Co offers a broad range of services. The company's four core areas are Diesel engines, Gas engines, mechanical fabrication, and engines, pumps and spare parts. Other ambits are stationary energy systems (CHPs and biogas plants), marine, construction machines, locomotives, special vehicles and industrial plants. To ensure a highly customer-oriented service, quality and safety awareness is the top priority in all divisions. Further qualities of Wulf Johannsen KG GmbH & Co. are many years of experience and specific professional expertise, like restoration and repair of turbochargers, production of bearings, and transmission overhaul of wind turbines.