Manuals for ZF Marine Transmissions

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

(Message me via Live Chat if don't find what you are looking for, or have old manuals to share to help other sailors.

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3 simple steps to make your diesel system reliable and robust

STEP ONE  - Get the manuals for your equipment

Owner, Workshop and Parts 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.

congratulations - by downloading these free manuals you are taking an important step towards making your engine more reliable and robust.


STEP TWO - regular maintenance

Simple, regular maintenance is the easiest, quickest and cheapest way to avoid problems and accelerated engine wear. Most expensive repairs start from a lack of basic maintenance or ignoring small warnings. The work is not difficult - it just needs to be done.

The purpose is so that we can enjoy our boat for all the reasons we bought her. Trust yourself. Do the work regularly and be methodical.


Download free checklists here

if you need clear, easy-to-understand help

300+ drawings

Seeing is Understanding

Marine Diesel Basics 1
Maintain, Winterize and Recommission

•  explains all parts of the marine diesel system - fuel,
lubrication, breathing, electrics, stern gland, propeller etc.
•  140+ tasks, 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


STEP THREE - keep a Maintenance Logbook

Keep a detailed and accurate record:

  1. all the work done on your diesel system - what, when  & by who
  2. inventory of serial numbers, component descriptions
  3. early warning of potential problems
  4. time and details of any changes in performance

Use a notebook or use your iPad, tablet or desktop and record the information in an editable PDF directly as you work.

click to enlarge

Maintenance eLogbook

If you've every struggled to keep a logbook, this editable eLogbook may be exactly the help you need.

- "fillable form" PDF
- clickable checklists
- write, edit  details of all tasks completed
- 40+ drawings to help inspections
- all common measurements with live calculators
- just $7.99 196 pages

"the Perfect Logbook" - verified purchaser


ZF Marine Transmissions (Gearboxes) Selection Guide

Transmissions Selection Guide

121 pages
publ. - 2012?



9 MB file

ZF Filter Cross Reference Guide

Oil Filter Breakdown Guide and Cross Reference

(ZF 4M thru ZF 30M models do NOT use filters)


12 pages
publ. July 2009

< 1 MB file



ZF Company Guide to marine transmission Models

Guide to models and the company

ZF marine transmission
(download from Everything About Boats

24 pages
publ. July 2018

< 1 MB file

ZF 15M1V marine transmission Technical Guide

Technical Guide


7 pages
publ. August 2008


< 1 MB file

ZF ZF3M Marine Transmission Repair Manual

Repair Manual

ZF 3 M (HBW 35)
ZF 5 M (HBW 50)
ZF 10 M (HBW 100)
ZF 12 M (HBW 125) / HBW 10
ZF 15 M (HBW 150)
ZF 15 MA (HBW 150 A)
ZF 15 MIV (HBW 150 V)
ZF 25 M (HBW 250)
ZF 25 MA
ZF 30 M

68 pages
publ. - no date given

2 MB file

ZF Hurth HBW 50 Marine Transmission Owners Manual

Owners Manual - Hurth
HBW 40
HBW 50
HBW 100
HBW  125
HBW 150
HBW  125
HBW 150
HBW 150A
HBW 150V
HBW 250

26 pages
publ. - no date given

< 1 MB file


ZF ZF4-1M Marine Transmission Operating Manual

Operating Manual

ZF 4-1M       ZF 5M
ZF 10M        ZF 12M
ZF 15M
ZF 25M        ZF 25MA
ZF 30M

60 pages
publ. - no date given

2 MB file

ZF 10M marine transmission Brochure


ZF 10M


4 pages
publ. - February 2004


< 1 MB file

ZF ZF16S-1650 Marine Transmission Repair Manual

Repair Manual

ZF 16S - 1650


75 pages
publ. May 2003


2 MB file

ZF ZFE 25A Marine Transmission Operating Manual

Operating Manual

ZFE 25 A        ZFE 25
ZFE 45 A        ZFE 45-1
ZFE 63 A        ZFE 63
ZFE 80 A       ZFE 80-1 A
ZFE 80 IV     ZFE 80-1 IV
ZFE 85 A       ZFE 85 IV


53 pages
publ. - no date given

4 MB file

ZF 30M marine transmission Brochure

Brochure and specifications

ZF 30 M


7 pages
publ. June 2012

< 1 MB file

ZF 45C marine transmission Repair Manual

Repair Manual

ZF45 C
ZF45 C Walter
ZF45 C Toyota
ZF63 C

43 pages

publ. - no date given

6 MB file

ZF 63 Transmission Repair Manual and spare Parts List 2005

Repair Manual and Spare Parts List

ZF 63       ZF 63A
ZF 80A   
ZF 80A - new version
ZF 80-1 -A
ZF 80A-1 - new version
ZF 85A


101 pages
publ. November 2005

4 MB file

ZF 63A Marine Transmission Technical Guide

Technical Guide

ZF 63A
8°Down angle, direct mount marine transmission

8 pages
publ. December 2008

< 1 MB file

ZF ZF63A Marine Transmission Repair Manual and Spares List

Repair Manual and Spare Parts List

ZF63A         ZF 63
ZF80A         ZF 80-1 A


112 pages
publ. February 2006


6 MB file

ZF ZF7500 Series Marine Transmission Operating Manual

Operating Instructions

ZF 7500/7600 Series


132 pages
publ. September 2006


5 MB file

ZF Transmission 80 marine transmission Description


ZF 80


9 pages
publ. June 2012


< 1 MB file

ZF HBW 360a 450 marine gearbox Repair Manual

Repair Manual

HBW 360
HBW 360A
HBW 450
HBW 630


58 pages
publ. - no date given

20 MB file

ZF 220 A marine transmission brochure


ZF 220A

8 pages
publ. December 2008


< 1 MB file

ZF 220 etc Operator Manual

Operating Manual

ZF 220A      ZF 220V
ZF 220 IV
IRM 225A
ZF W 220


31 pages
publ. - no date given
lang. English, French, German, Italian, Spanish

< 1 MB file

ZF BW6M Marine Transmission Operating Instructions

Operating and Maintenance Instructions


ZF BW6M 30


8 pages

publ. - no date given

< 1 MB file


ZF SD10 Marine Saildrive Owners Manual

Description and Owner's Manual



28 pages
publ September 2011

1 MB file

ZF SD10 Saildrive Repair Manual

Repair Manual

SD 10
SD 12


20 pages
publ. October 2008


2 MB file

ZF SD10 Marine Saildrive Spare Parts list

Spare Parts List and Explosion View


38 pages
publ. October 2008


2 MB file

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