 914/6 Oil Filter, 1976 2.7L CIS in 1975 914 |
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| Kansas 914 |
 May 8 2026, 07:25 AM
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#1
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Advanced Member  Group: Members Posts: 3,008 Joined: 1-March 03 From: Durango, Colorado Member No.: 373 Region Association: Rocky Mountains 
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I have conflicting information on the correct oil filter in my 914/6 conversion.
It is a 1975 with a 1976 2.7L CIS. It does have a 914/6 Oil tank. I have been told Mahle OC54 and OC61. I have both on the shelf which confuses me more. Thanks in advance - Mike |
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| DennisV |
May 8 2026, 08:49 AM
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#2
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Senior Member Group: Members Posts: 915 Joined: 8-August 20 From: Santa Rosa, CA Member No.: 24,575 Region Association: Northern California
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QUOTE(Kansas 914 @ May 8 2026, 06:25 AM)  I have conflicting information on the correct oil filter in my 914/6 conversion. It is a 1975 with a 1976 2.7L CIS. It does have a 914/6 Oil tank. I have been told Mahle OC54 and OC61. I have both on the shelf which confuses me more. Thanks in advance - Mike Isn't the correct filter dictated by which oil filter console (aka bracket or standoff) you have? Stock 914-6 oil tank has 901-107-025-00 console, that would fit 901-107-203-09 filter. This is same as used on 1965-73 911s. Not sure which Mahle that would map to. |
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| smg914 |
May 8 2026, 09:44 AM
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#3
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Sahara Beige Steve Group: Members Posts: 1,988 Joined: 22-February 04 From: Tampa, FL Member No.: 1,695 Region Association: None  |
From what I understand either of those filters OC54 or OC61 will work on a stock 914-6. I use the red Purolator PC 34 (901.107.203.10) sold by Porsche Classic
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| aturboman |
May 8 2026, 09:58 AM
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#4
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Member Group: Members Posts: 156 Joined: 18-October 11 From: CA Member No.: 13,687 Region Association: None |
This is correct data. Here is a original 6 with the factory Purolator filter referenced. The car is running a 3.2. The stock oil tank dictates the filter needed. Recommendation is to use only Porsche filters, they have an internal bypass many aftermarkets do not.
 QUOTE(smg914 @ May 8 2026, 08:44 AM) From what I understand either of those filters OC54 or OC61 will work on a stock 914-6. I use the red Purolator PC 34 (901.107.203.10) sold by Porsche Classic |
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| Root_Werks |
May 8 2026, 10:39 AM
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#5
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Village Idiot Group: Members Posts: 8,973 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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Also have a 2.7 with stock 914-6 tank. Believe I run the OC61.
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| sixnotfour |
May 8 2026, 11:11 AM
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#6
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914 Wizard Group: Members Posts: 11,231 Joined: 12-September 04 Member No.: 2,744 Region Association: NineFourteenerVille
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depends on factory adapter ,,stock oc=61 ... there is a 911 , adapter that fits stock tanks and Bens, uses OC-54 .... thread size determines wich one..
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| mskala |
May 8 2026, 12:54 PM
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#7
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R Group: Members Posts: 1,945 Joined: 2-January 03 From: Massachusetts Member No.: 79 Region Association: None
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For stock console, OC-61 is the right one. Lately, I've been pushed to OC-59
by (I think) pelican. Maybe OC-61 is discontinued. |
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| Kansas 914 |
May 8 2026, 03:09 PM
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#8
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Advanced Member Group: Members Posts: 3,008 Joined: 1-March 03 From: Durango, Colorado Member No.: 373 Region Association: Rocky Mountains
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Thanks guys - you are the best - cheers!
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| mb911 |
May 8 2026, 04:04 PM
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#9
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914 Guru Group: Members Posts: 7,762 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest
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A bunch of misinformation here. The correct filter for a stock console is oc61 and for the upgraded console like what I sell should use the oc54. It has zero to do with oil lines (IMG:style_emoticons/default/wacko.gif) it’s all about the console
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| rick 918-S |
May 8 2026, 05:13 PM
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#10
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Hey nice rack! -Celette Group: Members Posts: 21,263 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region
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I have absolutely nothing to contribute to this discussion. Just wanted to say Hey! (IMG:style_emoticons/default/bye1.gif)
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| sixnotfour |
May 8 2026, 05:42 PM
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#11
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914 Wizard Group: Members Posts: 11,231 Joined: 12-September 04 Member No.: 2,744 Region Association: NineFourteenerVille
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oil lines ??
Filter thread size yes.., 0C-61 smaller 0C-54 bigger |
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