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After the recent thread regarding low oil pressure (sorry man) I am trying to confirm I have the correct part number for mine.

I have a new ported LSA pump so it didn't come with o-rings. According to this site the correct part number is GM 12557752:

Oil Pickup Tube O-Ring for LS-Series Engine - 12557752 12557752


Can any confirm this is correct? GM part sites don't list a specific part number for the o-ring, just the pump and pickup tube.
 

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Yep, that's it. I just put one of those in my car.
 

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I'm curious if this is for sure it? On GM parts direct, they don't even show an oil pickup O-ring for a CTS-V. When I type in 12557752, it states that this part does not fit my Cadillac vehicle. When I type this part into the Canadian parts website, it says it is the pick up O-ring but labels it "1st design". Does this mean there is a 2nd design that is updated? No superseded part number is given.
 

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I have a 12557752 that I recently purchased and it is identical to the black O-ring supplied with the Melling pump except for color and durometer. The blue GM O-ring is quite a bit softer than the black Melling O-ring.
 
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