Manuals for Weichai Diesel Engines

Owner and Workshop Manuals are important documents that should be part of every vessel's library. They contain the detailed information necessary for safe operation, maintenance and correct servicing.  

The manuals on this page are provided for public information and education and can be downloaded for free.  All copyrights belong to copyright holders stated in the documents.

Dennison Berwick at launch of Marine Diesel Basics 1 in Toronto, Canada

(Please message me via Live Chat if don't find what you are looking for, or are willing to help other sailors by sharing a manual not yet listed here).



Marine Diesel Basics 1
shows how to do over 140 tasks:

•  explains all parts of the marine diesel system - fuel,
lubrication, breathing, electrics, stern gland, propeller etc.
•  300+ drawings, 222 pages
•  tasks are fully explained with clear drawings and minimal text
•  all tools & supplies needed are illustrated for each task
•  paperback US$15.99 £10.99 €12.99
•  ebook (kindle, kobo, ibooks, google, epub) US$9.99


Weichai R Series diesel engine Operation & Maintenance Manual

Operation & Maintenance Manual

R Series


86 pages
publ. June 2005


6 MB file

Weichai WD 615 marine diesel engine series Service manual

Operation and Maintenance Manual and Service Manual


20 pages
publ. March 2009

10 MB file

Weichai WP4 Marine Diesel Engine Brochure

General Specifications / Brochure

WP4 Series

2 pages
publ. 2015


1 MB file

Weichai WP4C102-21 Marine Diesel Engine Information Sheet

Technical Data



4 pages
publ. - no date given


< 1 MB file

Weichai WP4C120-18 Marine Diesel Engine Technical Information Sheet

Technical Data



4 pages
publ. - no date given


< 1 MB file

Weichai WP4C Diesel Engine Turbocharger Drawing


WP4C Turbocharger


1 page
publ. - no date given


< 1 MB file

Weichai WP4C diesel engine Aftercooler Drawing


WP4C  Aftercooler


1 page
publ. - no date given


<1 MB file

Weichai WP7 Diesel Engine Service Manual

Operation and Maintenance Manual

WP7 Euro VI Vehicle Diesel Engine


41  pages
publ. March 2014


1 MB file

Weichai WP12 Marine Diesel Engine Operating Instructions

Operating Instructions

WP12 series

(upgraded version of TD226B series)


57 pages
publ. - no date given


3 MB file

Weichai WP12 Diesel Engine Service Manual

Operation and Maintenance Manual

Landking WP12 Euro III Series


53 pages
publ. June 2007


3 MB file

Print Friendly, PDF & Email