I recently purchased parts from NAPA. Got a Denso reman alternator, water pump, and belt tensioner.
Owner reviews for alternator
Manufacturers
Comparisons
Original starter and alternator
Pros: original starter, alternator
Vehicle:
Toyota Matrix
Buy off rockauto and go with denso brand
First gen Expedition- I'm not a Ford fan, but some of those old Expeditions were amazing. Definitely seem to be hit or miss, either bulletproof or a nightmare with no in between. My father had a 98 that he bought new and scrapped in 2019 with just shy of 500k miles, absolutely beat the living shit out of that truck and it just wouldn’t die, only ever needed an alternator, 2 shifter cables, a brake hose and 2 ignition coils.
Pros: bulletproof, wouldn’t die
Cons: hit or miss
Vehicle:
Ford Expedition
Mileage: 500000 km
Alternator is easy. OEM or Denso for sure. It’s a super easy job.
Pros: super easy job
FWIW when I had to replace the alternator on my 2008 last summer, the dealer only had OEM Toyota remans. The first one had a bad regulator or something and was clicking like crazy out of the box. They exchanged it no questions but said that's nearly never happened. Next one has been fine.
Pros: next one has been fine
Cons: clicking like crazy
Vehicle:
Toyota
Get a denso reman or be prepared to replace it again in a year.
Cons: replace it again
Vehicle:
Honda Civic
Duralast are shit alternator. See it time and time again people buy them and have more problems afterwards.
Cons: poor quality, causes problems
I have a Porsche 924 2.0l 125hp NA. I had already upgraded it to a Ridex 90ah alternator but it died within a few months.
Cons: died quickly
Vehicle:
Porsche
My alternator in my 2007 V6 RAV4 died just under 2 years ago (Dec 2023), and I got it replaced at a local Toyota dealership. Now, about 20k miles later, I needed a jump start 2 days in a row, and O'Reilly Auto Parts battery tester said the alternator is dead again. Most sources say replacement alternators should last 5-10 years.
Cons: premature failure, short lifespan
Vehicle:
Toyota
Mileage: 32187 km
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