Owner reviews for alternator

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Denso

4.4

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Denso

3.5

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OEM Toyota: Alternator

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3.7

40 reviews

Alternator Bosch or Denso

Alternator Denso or Duralast

Alternator OEM Toyota or Denso

Alternator Bosch or Duralast

Alternator Denso or VALEO

Alternator OEM Honda or Denso

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OEM Honda › Alternator

Efflictim888 11 Dec 2025, 23:41

Rating 5.0

I had a 2016 accord sport that i just sold with over 200k miles. It has all its original belts,water pump, valves,thermostats, and sensors. The only major thing i changed was the alternator. I did regular maintenance and fluid changes with no issues and of course batteries, brakes, and rotors.

Pros: regular maintenance, no issues

Vehicle: Honda Accord

Mileage: 321869 km

OEM KIA › Alternator

getithowyoulive21215 9 Dec 2025, 17:23

Rating 4.0

Warning light:

My 2017 Kia Soul has 226,500 miles on the body and I have had none of these problems except my alternator died a few months ago but it had 220,000 miles on it.

Pros: high mileage, no problems

Vehicle: Kia Soul

Mileage: 220000 km

Denso › Alternator

delacruztaylor1611 8 Dec 2025, 03:43

Rating 4.0

Just buy a reman denso

Pros: reman denso

Vehicle: Toyota

Denso › Alternator

Nacho_Tools 7 Dec 2025, 23:17

Rating 4.0

Ok, so it's a toyota so odds are it's a denso or denso style alternator. I used to rebuild Alternators, you will need access to test certain parts like the regulator, or diode trio, or the windings to see where it's failing.

Vehicle: Toyota

OEM FORD › Alternator

ModSpdSomDrg 7 Dec 2025, 23:02

Rating 4.0

Noise:

I can\u2019t make out the sound but once upgraded the alternator on my 29 roadster pu that had a late model bronco v6 in it and the darn thing sounded like I had a super charger with the whirling. Crazy sound but ran perfectly fine for as long as I had the truck (years).

Pros: ran perfectly fine

Cons: sounded like super charger

Vehicle: Ford Bronco

TYC › Alternator

xprandal 8 Aug 2025, 15:05

Rating 3.0

Lights:

I got a TYC off Rockauto and it’s kind of annoying that it will sometimes drop in and out of charge at idle ever since I replaced it but other than that it has been working for a year and 26,500 miles so far. It had way less copper winding material and was lighter weight than the stock unit which the oem is clearly superior.

Pros: working for a year

Cons: drops charge at idle

Mileage: 42446 km

Duralast › Alternator

4runner01 8 Aug 2025, 14:13

Rating 3.0

I’ve had two D/L Alternators. Each has lasted 3 or 4 years.

Vehicle: Toyota 4runner

OEM Audi › Alternator

Maleficent_Stage_581 16 Oct 2025, 08:58

Rating 1.0

Die neueren Generatoren sind heute noch Müll (Haltbarkeit). Musste ich erst in meinem A6 erleben (der zu meinem Glück noch auf Garantie ging). Im RS6 gehen die Dinger auch am laufenden Band flöten.

Cons: schlechte Haltbarkeit, häufige Ausfälle

Vehicle: Audi A6

OEM Nissan › Alternator

BreadGang_Ike 13 Oct 2025, 15:45

Rating 1.0

Warning light:

I've gone through 3 Nissan Value Advantage Alternators (through the Infiniti dealership - warranty) for my Q. All Infiniti offers for my year (2015) are Remanufactured Alternators. I'm tired of Remans.

Cons: repeated failures, remanufactured issues

Vehicle: Infiniti

Bosch › Alternator

Gregdabrat 12 Oct 2025, 20:28

Rating 1.0

Noise:

I bought an aftermarket bosch alternator, (new not refurbished) and after installing the pulley to 80NM (black part), I noticed a wobble and a brushing sound. The original alternator does not have this brushing sound.

Cons: wobble, brushing sound

Vehicle: Volvo XC70