Radiator o ring replacment

Tiny
GERSON FACUNDO
  • MEMBER
  • 2011 CHEVROLET SILVERADO
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
Where can I get o ring replacements for the transmission cooling lines the ones that go to the radiator. I purchased a box at AutoZone with many standard sizes but they are too thick. It seems the old o ring is kind of flat on the OD. Any body know anything about it or do I have to replace the whole radiator which will probably come with the o rings?
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Thursday, November 26th, 2020 AT 12:01 AM

3 Replies

Tiny
ASEMASTER6371
  • EXPERT
Good morning,

Go to a GM dealer parts department and they will give you the correct O rings. You cannot use the universal ones as they will fail when installing.

Is this the seal you are referring to? I attached a picture for you.

Roy
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Thursday, November 26th, 2020 AT 2:33 AM
Tiny
GERSON FACUNDO
  • MEMBER
Yes, I believe is the same of your diagram and thanks. I will be going to the dealership then. Thank you for the info.
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Thursday, November 26th, 2020 AT 9:08 AM
Tiny
ASEMASTER6371
  • EXPERT
You are welcome.

Always glad to help.

Roy
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Thursday, November 26th, 2020 AT 9:12 AM

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