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IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

Alternator replacement recommedation

Old Jun 20, 2018 | 10:58 PM
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Default Alternator replacement recommedation

Hello,

Would anyone have any recommendations on where to purchase an OEM alternator? I replaced my alternator with one from Orielly's roughly 6 months ago and it appears to have crapped out on me. The symptoms I had where the battery light would come on when my car was under 1500 RPMs and it would go away if I where to rev the engine any higher. It pretty much started dying on the freeway and luckily I had enough juice to exit and pull into a parking lot. I do have a warranty however I am not sure how trustworthy the replacement would be since it went out on me. Also any thoughts on purchasing OEM refurbished alternators?

Thank you
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Old Jun 21, 2018 | 08:30 AM
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Hi Merkin,

I can't recommend another place for an OEM alternator, but i had a similar issue with the re manufactured one I got from O'rielly as well. My first one lasted 2 years and they replaced it with another one 6 month ago. Lifetime warranty is great, but this in one difficult alternator to change out.

Good luck.
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Old Jun 21, 2018 | 02:21 PM
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Well, if OEM is what you want, you're options are limited. Dealership or online. Google the P/N and purchase whatever is cheapest.
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Old Jun 21, 2018 | 03:11 PM
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Originally Posted by Gville350
Well, if OEM is what you want, you're options are limited. Dealership or online. Google the P/N and purchase whatever is cheapest.
Any thoughts on re-manufactured ones? Seeing a ton of those online.
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Old Jun 21, 2018 | 11:06 PM
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I just replaced mine with a reman Denso from Rock Auto.
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Old Jun 22, 2018 | 11:19 AM
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Originally Posted by merkin110
Any thoughts on re-manufactured ones? Seeing a ton of those online.
When mine went out, I got an Auto Zone reman unit. Still running strong till this day.
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Old Jun 22, 2018 | 06:31 PM
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Thanks guys since I do have a warranty and will be replacing it myself I am just going to get a warranty replacement. Now another question once I loosened up the alternator for removal some coolant or something leaked out. Any idea as to why?
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Old Jun 23, 2018 | 08:58 PM
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Originally Posted by merkin110
Thanks guys since I do have a warranty and will be replacing it myself I am just going to get a warranty replacement. Now another question once I loosened up the alternator for removal some coolant or something leaked out. Any idea as to why?
i think most all replacements remanufactured alternators were once a Denso. They quality depends on who the remanufacters are and the quality of the replacement windings. The 2IS is a fairly easy to reach replacement.

if this were one of the Toyota FWD 350 V6 like in the ES, RX, Sienna or Highlander, I’d definitely spend more on a Denso new since you practically have drop the engine and remove the radiator to access it.

also FYI, Denso does have their “First Time Fit” marketed replacement parts now at a fraction of dealer price. The Denso remanufactured one is around $230 with core trade.

Last edited by sinister2c; Jun 23, 2018 at 09:04 PM.
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