Alternator Denso or OEM Mazda

I got a denso alternator at Napa for $375-ish. I was a happy pappy

It was a brand new denso and no leaks

I did the alternator recently on my 2013. The price of the part was about the same.

Mechanic put in a different kind, and I spent all last summer with dead batteries. After a lot of troubleshooting, and thinking there was a parasitic draw, we found the alternator was bad. Replaced w/ Denso, and no problems since.

I replaced my odysseys alternator with a denso and it's been great i also think denso was the oem part anyway.

For anyone looking for a drop in upgrade, I used a 105 amp for a Suzuki. Made by Denso. No harness needed, plugs right in. Going strong for a couple years now in my 3rd gen.

I just replaced mine and went with a denso reman. They are the makers of the oem alternator so I’d trust them more than other brands.

The symptoms sound like a bad alternator, the car can usually run off the alternator's output alone even with a bad battery. What brand of alternator did you get?

I went through five alternators last year on my personal car. All five had different separate failures and all failed within a total of four months combined.

Broke down and had a mobile mechanic install a no-name Advanced Auto Parts type branded remanufactured one. Ended up failing in 3 months.\n\nHad my trusted mechanic install a Denso remanufactured and have had no issues since.