Service Letters

This is a collection of service letters published by Everllence (formerly MAN Energy Solutions), Copenhagen/Holeby, Denmark, covering both Everllence B&W two-stroke and four-stroke combustion engines.

Our service letters provide information on new engine developments and trends, service experience, important aspects of engine management and maintenance, and emissions requirements compliance and development, etc. 

Note that some service letters have documents attached (e.g. work cards, instructions, guidelines, specifications, etc.) that may subsequently have been updated after the release of the service letter. It is therefore recommended to check for the latest edition of such attachments.

Table of Content

pdf
2-stroke Table of content
pdf | 345 KB
pdf
Service Bulletin, Four-stroke Pielstick (available via mail request to primeserv.technical-france@everllence.com) – Table of content
pdf | 327 KB

Download

pdf
SL2025-772
pdf | 489 KB
pdf
SL2025-771
pdf | 1270 KB
pdf
SL2025-770
pdf | 474 KB
pdf
SL2025-769
pdf | 556 KB
pdf
SL2024-761
pdf | 429 KB

Service letter archive

For older service letters please go to the service letter archive
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All data provided on this site is for information purposes only, explicitly non-binding and subject to changes without further notice. Unless otherwise stated, the copyright and any other rights in the contents of the Service Letters available through our website, including any images and text, are owned by Everllence. For the avoidance of doubt, you must not adapt, edit, change, transform, publish, republish, distribute, redistribute or show in public the Service Letters (in any form or media) without the prior written consent of Everllence. 

Permission is granted to: 

  1. download, display or print material for personal use or use within an individual organisation and for a non-commercial purpose; 
  2. create links to these pages; 
  3. reproduce short extracts provided the source is stated.  

Requests for further authorization regarding proposed usage of the information provided should be addressed to:  

Everllence 
Teglholmsgade 41 
2450 Copenhagen SV 
or by email to jacob.bonelli@everllence.com 

Requests of the S.E.M.T. Pielstick Service Bulletin should be addressed to:  

Everllence France 
Attention: Technical Assistance Everllence PrimeServ 
Avenue de Chatonay , Porte 7 
BP 427 
44615 Saint-Nazaire Cedex 
France 
or by email to primeserv.technical-france@everllence.com