Got a remanufactures duralast alternator. Worked for about a week and the died.
Cons: died quickly, short lifespan
Reviews of Duralast alternator
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Reman alternator quality is in the toilet. Not uncommon to have to warranty an alternator once or twice.
Cons: alternator quality is bad
I started having problems like my alternator was going bad again so I replaced it with a duralast alternator part number DL2618-6-11 because I had a lifetime warranty on it and it still didn't fix it so I was thinking it may be a wire shorting out was playing around with the wires that go to the alternator and the plug on the back that goes from the alternator to the PCM and it's started charging again ( I guess it finally connected the electricity) so I replaced the plug on the back of the alternator. It fixed it work for about a month then it happen again check charging system battery light on and battery going dead so I was done. I took it to the Ford place they wanted to replace the other side of the PCM to alternator connector which they did and the alternator so I got another AutoZone lifetime warranty alternator and when they did that they said everything is charging and running like it is supposed to be but your PCM is still throwing the battery light and check charging system because your alternator is charging at 14v and for the PCM to cut the light off it needs to be at 14.6 v. So they wanted to put another alternator on it because they said the alternator from autozone the voltage regulator wouldn't let it go to 14.6 volts. The car runs and drives and doesn't have any problems I just hate the light being on to be honest I have spent hours on the Internet trying to see if it's just these AutoZone alternators that aren't letting it get to the volts the PCM wants or not haven't found anything.
Cons: insufficient voltage output, battery light remains on
Vehicle:
Ford Mustang
Part number: DL2618-6-11
Duralast are shit alternator. See it time and time again people buy them and have more problems afterwards.
Cons: poor quality, causes problems
I burned up 4 of the duralast Gold GM 12si alternators while they were still under warranty, if I had to venture a guess it would be they don't like high RPM . I removed them from two of my samurai's and went back to stock, haven't had a problem since
Cons: don't like high RPM
I’ve had two D/L Alternators. Each has lasted 3 or 4 years.
Vehicle:
Toyota 4runner
I went through 3 duralast nators on my wife's exploder before I got one that lasted more than 6mos. Aftermarket everything has mostly gone to shit.
Cons: lasted less than 6mos
I have experience with both shitty Autozone Duralast alternators and I would not purchase them.
I have shadow codes for my water pump because of it, and my voltage is not high enough at idle, and never surpasses 13.5ish volts. It whines loudly, and it doesn't make the same power as my last alternator contrary to the ratings.
Cons: whines loudly, low voltage
2004 Limited with 310000 miles alternator went out so went to local service shop . They were able to get it in and repaired next morning other shops in the area are a week backlog.Parts we're 310.00 (Duralast alt.and Gates belt)
Pros: repaired next morning
Mileage: 498896 km
I went with a Duralast Gold(90A) which never gave me a issue. If I had a oscilliscope im sure it had good output.
Pros: good output, no issues
Vehicle:
Acura RSX
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What we know about Duralast alternator
The brand is registered in USA. Official website: https://www.duralastparts.com/.
In March 2026, PartReview users have a mixed opinion of Duralast alternator.
PR Score — 43 out of 100, based on 54 reviews and 172 votes. 18 positive reviews, 10 neutral reviews, 26 negative reviews. Average rating — 2.6 (out of 5). Vote balance: 74 up, 98 down.
In the ranking of the best alternator this part is at position 18, behind OEM Mazda and GENERAL MOTORS , but ahead of WAI and Stinger.
Users also evaluated the qualities of Duralast alternator:
- Warning light - battery light appears on the dashboard - rated negatively. 2.2 points out of 5.
- Lights - headlights flicker or dim at idle - rated ambivalently. 2.6 points out of 5.
- Noise - whine or chirp from the alternator area - rated negatively. 1.6 point out of 5.
Alternator Duralast in car-specific ratings
See which car brands and models owners choose Duralast alternator for. Below are car-specific ratings where this part is in the Top-3:
- Duralast ranked #2 for: Honda S2000 .
- Duralast ranked #3 for: Ford Mustang, BMW X5, Toyota 4runner .
Alternator Duralast in comparisons
There are 17 comparisons of Duralast alternator with other manufacturers on PartReview.
In particular, see which alternator are better: Mitsuboshi or Duralast, OEM KIA or Duralast, GENERAL MOTORS or Duralast, OEM BMW or Duralast, OEM Mazda or Duralast .