673 votes
I have a 2005 XLS and upgraded to the 130a one, no issues at all. I bought a Denso (oem) one on rockauto for $170, sent my old one and got $40 back. The Toyota one (also denso) was like $450. The 130a was actually cheaper than the 100a too. Did it myself in about 3 hours
Horrible mistake with the aftermarket alternator. You likely will need to redo the job really soon.
I’ve used denso remans and not had issues
Please please please, get a remanned or new Denso. Do not buy anything else. You WILL regret it.
Unless you love electrical quirks and replacing alternators, get a Denso.
As someone pointed out, don't expect the 150 dollar alternator to last that long. I threw on my 4runner a few months back because that's all that was in stock locally and I'm gonna have to replace it again, it's already whining. I'd definitely spend $350 or whatever it is on a denso unit
I ordered a new (reman) denso alternator from RockAuto and also got a replacement alternator belt too. I\u2019m almost done with the job (took out the old alternator, mounted the new one) and it\u2019s been surprisingly easy, just a matter loosening 3-5 bolts and fiddling with a belt.
For the alternator I would only go with a reman denso personally
Denso or straight from a Honda Dealership (Denso). Today's aftermarket and remanufactured parts often leave quite a bit to be desired. You may pay a little more, but legit Honda parts won't let you down like the others.
And try and go with the Denso. Some of those are Chinese sweatshop garbage.
I replace just as many aftermarket alternators that are 'new', as I do 10+ year old OEM. Aftermarket alternators, unless denso's, fail often.
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The brand is registered in Japan.
In March 2026, PartReview users have a positive opinion of Denso alternator.
PR Score — 81 out of 100, based on 218 reviews and 673 votes. 170 positive reviews, 19 neutral reviews, 29 negative reviews. Average rating — 4 (out of 5). Vote balance: 548 up, 125 down.
In the ranking of the best alternator this part is at position 1 ahead of Bosch and OEM Toyota.
Users also evaluated the qualities of Denso alternator:
See which car brands and models owners choose Denso alternator for. Below are car-specific ratings where this part is in the Top-3:
There are 17 comparisons of Denso alternator with other manufacturers on PartReview.
In particular, see which alternator are better: Denso or Mitsuboshi, OEM KIA or Denso, Denso or GENERAL MOTORS, Denso or OEM BMW, Denso or OEM Mazda .
