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Old 04-09-2019, 07:02 AM   #18
BrokenLinkage
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Join Date: Apr 2011
Location: Alabama
Posts: 447
I believe that one (99610702559) supercedes 99610702557, which is listed oem for the 986 BoxsterS 3.2 liter AND the 997 series 3.6 liter.
But forum member TRK had suggested in another post that the 997 oil cooler is larger (thus presumedly more effective) and fits the 986. I believe he must be referring to part 99710702500, which is listed for the 997 series 3.8 liter cars. I am just trying to get some confirmation before ordering the 997xxx part. If I am going to replace the oil cooler anyway, might as well upgrade at the same time, but want to make sure I am ordering the right "upgrade" part number.

Last edited by BrokenLinkage; 04-09-2019 at 08:13 AM. Reason: Clarify / correct
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