Reviews of Denso alternator

PR Score ? Shows the percentage of positive votes. Learn more in the help

Based on

218 reviews and 673 votes

673 votes

Average rating ? The average rating is calculated only from review ratings, without votes
4.0
Warning light:
3.5
Noise:
3.0
Lights:
4.4

218 reviews

Description
Denso
Japan
Rank #1

among 18 manufacturers

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Denso Alternator

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

Pros: no issues, cheaper than OEM
Vehicle: Toyota
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Denso Alternator
  • Warning light:
  • Lights:
Rating 5.0

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.

Pros: avoids electrical quirks
Cons: other brands cause issues
Vehicle: Honda Civic
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Denso Alternator

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

Pros: Denso unit is better
Cons: cheap alternator failed
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Denso Alternator

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.

Pros: surprisingly easy, straightforward
Vehicle: Toyota Sienna
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Denso Alternator
  • Warning light:
Rating 4.0

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.

Pros: legit Honda parts
Cons: aftermarket parts undesired
Vehicle: Honda
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Denso Alternator

I replace just as many aftermarket alternators that are 'new', as I do 10+ year old OEM. Aftermarket alternators, unless denso's, fail often.

Pros: OEM alternators are reliable
Cons: aftermarket alternators fail often
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Reviews of Denso alternator

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:

  1. Warning light - battery light appears on the dashboard - rated positively. 3.5 points out of 5.
  2. Lights - headlights flicker or dim at idle - rated positively. 4.4 points out of 5.
  3. Noise - whine or chirp from the alternator area - rated ambivalently. 3 points out of 5.

Alternator Denso in car-specific ratings

See which car brands and models owners choose Denso alternator for. Below are car-specific ratings where this part is in the Top-3:

  1. Denso ranked #1 in alternator ratings for: Honda Odyssey, Honda Civic, Honda Element, Toyota 4runner .
  2. Denso ranked #2 for: Honda Fit, Honda Accord .
  3. Denso ranked #3 for: Toyota Avalon .

Alternator Denso in comparisons

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 .

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