
Manuals for Nissan Diesel Engines
Nissan started as Nihon Diesel Industries in Kawaguchi, near Toyko, Japan, in 1935 making two-stroke diesel motors. The company was renamed Nissan Diesel Motor Co. in 1960 and focused on making trucks. Volvo took over the company in 2007, though Nissan continued as a separate division and changing the name in 2010 to UD Trucks. In late 2019, Volvo signed a non-binding Memorandum of Agreement that would see the company eventually transferred to Isuzu.

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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
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$17.99 £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:
- all the work done on your diesel system - what, when & by who
- inventory of serial numbers, component descriptions
- early warning of potential problems
- 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.
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

Owner's Operating Manual
NS 2.5
NS 3.5
53 pages
publ. - no date given
2 MB file

Owner's Operating Manual
NS 3.5B
51 pages
publ. - no date given
< 1 MB file

Owner's Operating Manual
NS 8
NS 9.8
53 pages
publ. - no date given
1 MB file

Owner's Operating Manual
NS 9.9C
NS 15C
NS 18D
61 pages
publ. - no date given
1 MB file

Owner's Operating Manual
NS 9.9
NS 12
NS 15
NS 18
41 pages
publ. - no date given
1 MB file

Owner's Operating Manual
NS 40
NS 50
101 pages
publ. - no date given
5 MB file

Owner's Operating Manual
NS 40C
58 pages
publ. - no date given
1 MB file

Owner's Operating Manual
NS 40D
NS 50D
67 pages
publ. - no date given
1 MB file

Owner's Operating Manual
NS 60B
NS 70B
143 pages
publ. - no date given
3 MB file

Owner's Operating Manual
NS 60
NS 70
NS 90
NS120
NS140
110 pages
publ. - no date given
4 MB file

Owner's Operating Manual
NSD 40 / 50 / 70 / 90 / 115
102 pages
publ. - no date given
2 MB file

Owner's Operating Manual
NSD 40A
NSD 50A
NSD 70B
NSD 90B
95 pages
publ. - no date given
4 MB file

Owner's Operating Manual
NSD 50A
NSD 90A
94 pages
publ. - no date given
4 MB file

Owner's Operating Manual
NSD 50A
NSD 70A2
NSD 90A2
94 pages
publ. - no date given
4 MB file

Owner's Operating Manual
NSF 2 / 3.5
47 pages
publ. - no date given
1 MB file

Owner's Operating Manual
NSF 2.5B / 3.5B
54 pages
publ. - no date given
11 MB file

Owner's Operating Manual
NSF 4A
NSF 5A
NSF 6A
47 pages
publ. - no date given
< 1 MB file

Owner's Operating Manual
NSF 4 / 5 / 6
45 pages
publ. - no date given
3 MB file

Owner's Operating Manual
NSF 4A2
NSF 5A2S
NSF 6A2S
45 pages
publ. - no date given
2 MB file

Owner's Operating Manual
NSF 6A3Z / 8A3 / 9.8A3
78 pages
publ. - no date given
5 MB file

Owner's Operating Manual
NSF 8A
NSF 9.8A
59 pages
publ. - no date given
3 MB file

Owner's Operating Manual
NSF 9.9A
NSG 15A
53 pages
publ. - no date given
2 MB file

Owner's Operating Manual
NSF 9.9B
NSF 15B
NSF 18B
56 pages
publ. - no date given
2 MB file

Owner's Operating Manual
NSF 9.9B2
NSF 15B2
NSF 18B2
56 pages
publ. - no date given
2 MB file

Owner's Operating Manual
NSF 25A
NSF 30A
72 pages
publ. - no date given
3 MB file

Owner's Operating Manual
NSF 25B / 30B
78 pages
publ. - no date given
18 MB file

Owner's Operating Manual
NSF 15C / 20C
74 pages
publ. - no date given
4 MB file

Service Manual
SD Series
SD22
SD23
SD25
SD33
71 pages
publ. - no date given
11 MB file

Quick Reference Index
SD 33T
43 pages
publ. 1983
8 MB file