Author Topic: ASSEMBLY LINE OIL FILTER ROTUNDA CODE  (Read 907 times)

chris NOS

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ASSEMBLY LINE OIL FILTER ROTUNDA CODE
« on: February 12, 2020, 05:38:49 AM »


Hi gentlemens, please , can somebody explain to me the date code on  Rotunda oil filter , is 6 for JUNE ? and the the 4 numbers down how do we decode them ?
thank you.

J_Speegle

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Re: ASSEMBLY LINE OIL FILTER ROTUNDA CODE
« Reply #1 on: February 13, 2020, 01:45:00 AM »
My understanding currently is that the top number identifies the type and in turn the application(s)

Lower number code is the date code plus an additional code.

Do have at least one example with only three numbers at the bottom but it appears it is not from the 65 period - the focus of your question.
Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com babysitter :) and Judge

Special Ed

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Re: ASSEMBLY LINE OIL FILTER ROTUNDA CODE
« Reply #2 on: February 13, 2020, 08:56:25 AM »
Could date be 4 april  64  9th  just guessing

J_Speegle

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Re: ASSEMBLY LINE OIL FILTER ROTUNDA CODE
« Reply #3 on: February 13, 2020, 12:20:44 PM »
Could date be 4 april  64  9th  just guessing

So far I've not see any with 5 or 6 digit lower lines which would eliminate the possibility of it being a month - year  - day of month pattern  like (for example 126531 for Dec 64 31st

Right now with only four digits being the max even month - year  - and machine/worker ID doesn't work

We need allot more clues/examples of originals  to figure out the code IMHO
Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com babysitter :) and Judge

deathsled

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Re: ASSEMBLY LINE OIL FILTER ROTUNDA CODE
« Reply #4 on: February 13, 2020, 12:24:03 PM »
That's quite an artifact you have there.
"Low she sits on five spoke wheels
Small block eight so live she feels
There she's parked beside the curb
Engine revving to disturb
She's the princess from his past
Red paint gold stripes damned she's fast"

Special Ed

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Re: ASSEMBLY LINE OIL FILTER ROTUNDA CODE
« Reply #5 on: February 13, 2020, 12:32:08 PM »
I have some black short assembly line break in filters here from the Dearborn plant now those are RARE.

deathsled

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Re: ASSEMBLY LINE OIL FILTER ROTUNDA CODE
« Reply #6 on: February 13, 2020, 12:36:51 PM »
Like an Indiana Jones golden idol.
"Low she sits on five spoke wheels
Small block eight so live she feels
There she's parked beside the curb
Engine revving to disturb
She's the princess from his past
Red paint gold stripes damned she's fast"

chris NOS

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Re: ASSEMBLY LINE OIL FILTER ROTUNDA CODE
« Reply #7 on: February 13, 2020, 04:39:06 PM »
Thank you for the answers !

outlawincorporated

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Re: ASSEMBLY LINE OIL FILTER ROTUNDA CODE
« Reply #8 on: February 13, 2020, 10:15:14 PM »
just wanted to add that I have the exact same assemblyline 65 oil filter as per pictures but my 4 digit code on the bottom is  4650.

Is it just co-incidence that the one in the original post is 4649???

regards
PHILL BERESFORD
MELBOURNE.
AUSTRALIA

J_Speegle

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Re: ASSEMBLY LINE OIL FILTER ROTUNDA CODE
« Reply #9 on: February 13, 2020, 11:10:18 PM »
just wanted to add that I have the exact same assemblyline 65 oil filter as per pictures but my 4 digit code on the bottom is  4650.

Is it just co-incidence that the one in the original post is 4649???

Believe so :)
Jeff Speegle- Mustang & Shelby detail collector, ConcoursMustang.com babysitter :) and Judge

Dan Case

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Re: ASSEMBLY LINE OIL FILTER ROTUNDA CODE
« Reply #10 on: February 15, 2020, 01:28:12 PM »
Here are two data points for you.

Dan Case
1964 Cobra owner since 1983, Cobra crazy since I saw my first one in the mid 1960s in Huntsville, AL.