User Login    
 + Register
  • Main navigation


Lost Password?

Register now!
Fast Search
Slow Search
Google Ad

[Datsun 1200 encyclopedia]

Oil cap

From Datsun 1200 Club

Datsun 1200 encyclopedia | Recent changes | Edit this page | Page history | Switch to MediaWiki mode

Printable version | Disclaimers | Privacy policy
Category: Engine Lubrication System

The stock Datsun 1200 Rocker cover uses a push-and-twist oil cap. It is a classic all-chrome cap and seals with a simple round gasket. Some other Datsuns use a threaded cap that will not work in a 1200. By the way, this is where you add oil to the engine.



All A-series engine rocker covers uses a cam-twist (push-and-turn) oil filler cap.

Datsun 1000 vented cap
Datsun 1200 sealed cap
  • All A-series engines from 1970-on use a sealed cap including all A12/A13/A14 and A15
  • Other Datsun engine types use a threaded cap that will not work in a 1200
  • Alloy rocker covers invariably use a different type of oil cap

25532.jpgAlbum click to view


The original 1200 cap Part Number is Nissan 15255-15953. However if you order this part number you are likely to get one of the superseded styles instead of the plain silver version.

15092.jpgAlbum click to view
1204.jpgAlbum click to view

The timeless style of the original B110 cap looks good with customized engines
8125.jpgAlbum click to view 14133.jpgAlbum click to view

1200 from intro to 1978 March (Japan) or to circa 1973 (USA)
* superseded by #B34 'NISSAN MOTOR OIL' cap
15255-15953 CAP-OIL FILLER
2-3/4" Oil Filler Cap (1-13/32" x 1-19/64" Cam Twist)
* STANT Part # 10102
* GATES Part # 31088 
174_5cf3469266ecf.jpgPost click for topic
* NOT BECK/ARNLEY Part # 0160048 screw-in cap (fits L-series)

Aluminum Version

Machined aluminum version of original 1200 style oil cap

VENDOR: Bprojects Product: Billet Hollow Oil Filler Cap RAW☁
Aluminum A6063
Hollow structure, very lightweight 100g

25534.jpgAlbum click to view 25535.jpgAlbum click to view 20469.jpgAlbum click to view

May be finished with Elephant applique from Bprojects
13080.jpgAlbum click to view 12859.jpgAlbum click to view

Or a Nissan applique
12988.jpgAlbum click to view 12989.jpgAlbum click to view

Color varieties from Bprojects
20471.jpgAlbum click to view 20470.jpgAlbum click to view

174_5cf34cb9a791d.jpgPost click for topic 174_5cf34ccbc5e9f.jpgPost click for topic 174_5cf34ce0e4836.jpgPost click for topic

Datsun 1000

The earliest A-series engine, the B10 Datsun 1000 A10 engine, uses a vented oil cap, so it doesn't work with the 1200 (Datsun 1200 caps are sealed). Vented cap is also known as a "blowby cap" because fumes will come out of it -- visibly so when the engine is worn. 1200 uses a sealed cap for happy motoring.
15099.jpgAlbum click to view

* R16 engine (Datsun Roadster)
* J13 engine (Bluebird 411, Datsun Trucks 521, 620)
* H engine (Datsun Roadster?)

Datsun 1000 used one of three varieties of oil cap

* plain blue
* plain blue with Nissan text overlay applied
* Elephant cap

The regular 1000 oil cap is plain blue with a little arrow sticker.
174_5ba6f07d12724.jpgPost click for topic 174_5ba6f06f28581.jpgPost click for topic 174_5ba6f06551b23.jpgPost click for topic 174_5ba6f075a3d87.jpgPost click for topic 174_5ba6f084c3fa6.jpgPost click for topic

Datsun B10 Elephant Cap was used in some markets. Apparently the elephant oil cap is a JDM OPTION cap

15255-10651 CAP-oil filler (op.) ALL

174_5ba6f17d08d7f.jpgPost click for topic 174_5ba6f184c304a.jpgPost click for topic

174_5ba6f15f5cc45.jpgPost click for topic 174_5ba6f16977a8c.jpgPost click for topic 174_5ba6f172103f4.jpgPost click for topic

Subtle difference between original and repro caps. The cap on the right has no arrow:
174_5ba6f18d71c34.jpgPost click for topic

The following is reportedly from 1000 coupe brochure, but looks very much like an A12. Did they make an updated A10, or is this a prototype Elephant Oil cap for an A12?
6547.jpgAlbum click to view 12872.jpgAlbum click to view


Later Nissan replacement caps differ stylistically from the original but work on all 1200 engines.
20649.jpgAlbum click to view


Circa 1973 they updated the cap by putting writing on it, and used it for the USA market. Japan did not switch over until April 1978. This replaced the #original plain silver cap.

15255-B3430 CAP-OIL FILLER $12.12
15270-B3400 PACKING-OIL FILLER CAP $1.40

16410.jpgAlbum click to view 16411.jpgAlbum click to view

ニッサン モーター オイルを
For Nissan Motor Oil

Fill Occasionally

24442.jpgAlbum click to view 24443.jpgAlbum click to view 174_5cf328cf27ebb.jpgPost click for topic 174_5cf328d775a01.jpgPost click for topic 174_5cf328e0ec053.jpgPost click for topic


1980s Nissan stamped-steel cap
25773.jpgAlbum click to view 12966.jpgAlbum click to view


The 80s cap was eventually replaced with a stylish sculpted version
15091.jpgAlbum click to view
15694.jpgAlbum click to view


I bought a brand new oil cap last year from Nissan Parts Business (Japan) for about $15 USD. It was the gold finish kind. The original plain silver type has been replaced by the gold type.

15255-G8250 - latest version drops the text in favor of an international oil symbol
15090.jpgAlbum click to view 16713.jpgAlbum click to view 

Retrieved from ""

This page has been accessed 9,474 times. This page was last modified 04:16, 2 June 2019. Content is available under Datsun 1200 Club.