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Automatic Transmission Oil Cooler Line Fitting?

Tiny
COMPNC55
  • MEMBER
  • 1995 CHEVROLET SUBURBAN
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 95,000 MILES
I need to replace the ACDelco 15718023 Automatic Transmission Oil Cooler Line Fitting. I can't find this part anywhere. NAPA and Dorman replacements don't fit. What can I do?
1995 Chevy Suburban K2500 5.7L L480E Transmission.
The new ACDelco transmission line will not fit into this connector.
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Friday, May 19th, 2023 AT 10:57 AM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
It sounds like the cooler line was updated. I would call the dealer to get the new fitting, no aftermarket auto parts will have this fitting. Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.
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Friday, May 19th, 2023 AT 12:39 PM
Tiny
COMPNC55
  • MEMBER
  • 2 POSTS
Thanks, but no dealers have the OEM GM part number 15718023. And they can't order it. The aftermarket parts from NAPA and Dorman don't fit. They are very close. The threaded side fits, but the side that accepts the hose with the 'C-Clamp' is too small.
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Friday, May 19th, 2023 AT 1:17 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,643 POSTS
Maybe a machine shop can help you. I would call around to see.
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Sunday, May 21st, 2023 AT 11:23 AM

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