Drivetrain Questions and info regarding transmissions, clutches, etc.

03 Coupe Auto Transmission Cooler Line Replacement?!

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Old Sep 9, 2025 | 08:59 PM
  #1  
isaac_brennan's Avatar
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Athens Blue G35 Coupe fully loaded with nav
03 Coupe Auto Transmission Cooler Line Replacement?!

My 03 Auto coupe has been leaking transmission fluid, and tonight I traced the source of this to a rusted hole in one of the steel lines running from the radiator to the transmission. I would like to replace these with new lines, but they do not appear to be reproduced new anywhere online. I would rather not pay a premium on eBay for a used part that may also prematurely fail. If anyone has dealt with replacing these lines, I would love to know how you did it. Thank you in advance!
 
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Old Sep 9, 2025 | 09:02 PM
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MaLPoPieS's Avatar
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From: Princeton, FL
Jaguar XFR-S
If you can't find replacement parts for your car and i know how that goes, then i'd suggest making your own line using a reinforced and braided line. The line is everywhere, the issue might be the fittings. Just google for custom oil cooler lines and kits will pop up..
 
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