Alternator OEM KIA or Bosch

Bosch makes (made) excellent rebuilt alternators and I’d check them out.

I bought a Bosch alternator at O’Reilly’s for ~ $300 and the gaskets at Autozone for ~ $100 (you can get them cheaper but I needed them quickly)

I would use the BOSCH from fcpeuro.com without hesitation.

I replaced my alternator two years ago, and I put in a Bosch, and I haven't looked back. It works great and also has a warranty.

Best has been new Bosch or Delco-Romy from jobber stores. Never had one of those fail yet.

I think I put a Bosch 145 on my 01 5.3 and it’s been a non issue

Looks very similar to a Porsche 944 alternator.

I own the exact car, when I bought it, it came with a bad replacement alternator. The replacement was an eBay brand which was causing all sorts of faults. I replaced it with a Bosch unit and the car seemed fine. A few weeks after the replacement, I started getting a random limp mode with various under and over voltage errors. At this point I decided to buy and install a BMW branded alternator. This took care of issue.

Ive had a few Bosch reman failures lately at my shop as well, although they were for N52s, all bearing noise after about a year.

Symptoms: Flickering lights, and occasional hiccup start. Now battery light is coming on and staying on. When stationary battery tests around 12.5 volts. When running, that drops to 11.7 volts.