Owner reviews for alternator

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Denso

4.4
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Denso

3.5
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OEM FORD

5.0
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OEM KIA Alternator

I own a rio 2013. di ko gets bat marami parin nagsabi ng walang parts available sa kia e nasa shopee lang lahat. madali lang rin ayusin, naka DIY na ako nagpalit ng alternator, clock spring, ignition coils at eps motor. halos lahat ng fix nasa youtube lang.

Pros: parts available, easy to repair
Vehicle: Kia Rio
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Bosch Alternator
Compy486
Rating 4.0
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I just had to swap my alternator today on my MK7. Mine was Valeo but I could only find a Bosch locally, I decided to give it a shot and it worked just fine. Just a PSA for anyone in the same situation, they are both the same barring a slightly different orientation of the plug on the back.

Pros: worked just fine, compatible
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OEM Honda Alternator

I have a 2007 CRV with 132,500 The car has been reliable and I'm currently dealing with replacing parts due to the age. Since the last quarter of 2025 I replaced the tensioner/belt,mid pipe, muffler/hardware and alternator.

Pros: car has been reliable
Cons: replacing parts due age
Vehicle: Honda
Mileage: 213240 km
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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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OEM Toyota Alternator

My last OEM Toyota alternator made it to 250K miles. My future non-Toyota ones failed because they were cheap remanufactured ones and later I found a failing harmonic balancer that was putting extra pressure on bearings of the alternator

Pros: long lifespan (OEM Toyota)
Cons: failed (non-Toyota remanufactured)
Vehicle: Toyota
Mileage: 250000 km
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OEM Mazda Alternator

Mazda's DO NOT like aftermarket alternator. Most don't work out of the box. You need to get a genuine Mazda alternator.

Pros: genuine Mazda alternator needed
Cons: aftermarket alternator bad
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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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