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O-ring question..........

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Old Sep 16, 2013 | 01:06 PM
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Default O-ring question..........
Hello All, Got a 0-ring question. Does the primary,trannie, and oil tank all have the same size o-ring for the drain plugs? Also does anybody know the size of them. Thanks in advance

Memo
 
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Old Sep 16, 2013 | 01:30 PM
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I can confirm that they use the same O-ring, but don't know the size offhand.

I bought a pack of them off eBay and compared them to the orignals and they're excact.

These O-rings are used on the drain plug of the engine, primary and transmission on V-Twin model Harley Davidson.
 
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Old Sep 16, 2013 | 02:41 PM
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delete double post
 
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Old Sep 16, 2013 | 02:42 PM
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Originally Posted by heybaylor
BTW the same 'O' rings fit the gas line tank connectors
nice to know as HD has no part # for them
 
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Old Sep 16, 2013 | 02:54 PM
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I just took an old one to the hardware and compared until I found a match. I believe the size was 7/16x1/2.
 
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Old Sep 16, 2013 | 03:03 PM
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I just bought those last month, after starting a thread on O rings. They were the right size and material.

https://www.hdforums.com/forum/general-harley-davidson-chat/903451-oil-filter-o-ring-can-you-buy-in-bulk.html
 
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Old Sep 16, 2013 | 08:10 PM
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I copied this from a post on this forum for future reference. I believe it may have been in the touring section. I'm not sure how this translates to different years and/or models.....

Harley oil plug/tranmission plug/ primary case plug O-ring HD part #11105

The cross reference is #013, the o-ring size is 9/16 o.d. x 7/16 I.d. 1/16 cross section (thickness).

Viton is best but Buna-N will do
 
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Old Sep 16, 2013 | 08:18 PM
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my primary o-ring is different from my trans and oil (04 train)
 
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Old Sep 16, 2013 | 08:38 PM
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Originally Posted by hattitude
I copied this from a post on this forum for future reference. I believe it may have been in the touring section. I'm not sure how this translates to different years and/or models.....

Harley oil plug/tranmission plug/ primary case plug O-ring HD part #11105

The cross reference is #013, the o-ring size is 9/16 o.d. x 7/16 I.d. 1/16 cross section (thickness).

Viton is best but Buna-N will do
Yep, your right. 7/16x9/16. The hardware o-rings work just fine for drain plugs.
 
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Old Sep 16, 2013 | 08:43 PM
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#41 O-Ring
 
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