Gen 2 AC Compressor Replacement: Toyota or Aftermarket?

Discussion in 'Gen 2 Prius Main Forum' started by landolfi, Jul 2, 2026 at 4:02 PM.

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  1. landolfi

    landolfi Junior Member

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    Vehicle:
    2011 Prius
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    Three
    My wife had her Prius Gen 2 (2005) AC compressor replaced last September with a non-OEM AC compressor. This year already it didn't seem to be very cool, so we took it back to the independent mechanic who replaced it. They checked freon and said it was low, but found no leaks. They recharged it, but cannot explain why the refrigerant was low. The car cools acceptably now, particularly since I replaced the cabin filter, so at least part of the cooling problem seemed to be a dirty cabin filter. But AC on my gen 3 Prius (2011) still seems to cool the car better than the AC in the gen 2.

    I doubt the engineering is that much better on AC systems between Prius gens 2 and 3, but that's the first question--is the gen 3 AC system better? And the second and more important question: The mechanic is willing to replace the aftermarket compressor they used with a genuine Toyota compressor. since their repair has a 3-year warranty. My next and more important question: Is there a significant difference in part quality between OEM and non if it's a reputable shop? I have no idea what brand was used, so I suppose the question is whether the genuine Toyota part is likely to be superior generally.

    Thanks in advance for any insight.
     
    #1 landolfi, Jul 2, 2026 at 4:02 PM
  2. ChapmanF

    ChapmanF Senior Member

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    Reading your question, I find myself unsure whether your mechanic has offered to do that entirely on their own dime, or has offered to comp the labor if you want to buy the replacement compressor. That might make enough difference to me to change my answer.

    If offered the opportunity to have a Toyota compressor put in for free, I would probably take it. If the offer involved me buying the part, maybe that would take more thought. I don't know anything about aftermarket compressors specifically, but on PriusChat we have seen examples of other aftermarket parts being made much less robustly than the originals.

    It might be worth remembering that Toyota also has its own remanufactured-parts program, though it is kind of limited, only covering a smallish selection of parts and even those aren't always available. Last I knew, if you were looking at a part number xxxxx-yyyyy, you could search for xxxxx-yyyyy-84 to find out if a Toyota reman version was available. I would definitely be willing to buy a Toyota reman part.
     
    #2 ChapmanF, Jul 2, 2026 at 4:11 PM
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