Alternator OEM FORD or AC DELCO

If those are your only options you're gonna go with, Remy or ACDELCO. Keep in mind the ACDELCO is not made by ACDELCO and is just rebranded. But has a warranty and decent support.

I always get AC Delco from RockAuto... never had one bad out of the box... Can't really speak to any other brands.

OEM. I've had to warranty and eat so much labor from faulty auto parts store starters and alternators it's unreal. They cost more, but I rarely have an issue with OEM.

I had lots of issues with a ‘96 4.6 Cobra. Back and forth between battery, alternator issues. Maybe, six months between issues. Finally replaced the alternator with new, not reman and changed the battery at the same time. That lasted for the next three years that I owned the car and was still fine when I sold the car.

I had a similar problem with my 08 mustang GT. The alternator burnt through the cord going from it to the battery. Bought a remanufactured alternator and replaced it. Still didn't work. Traded it in for another remanufactured. Still didn't work. Finally returned that one and bought a brand new one. Works fine 6 years later and no problems.

I\u2019ve had an ac delco alternator from rock auto in my Honda Fit for 7 years now.

On rock auto I see new alternators from ac delco. Not sure about any of those brands.

I haven't had this problem with my RX8, but I had a similar problem with my Ford. Alternator was putting out 14.4V, but I still had a light. Took it to the parts store and they hooked it up to their tester. It said the Alternator was no good.

Had issues with every single Ford alt I replaced (from autozone, Napa, Oriellys) didn’t matter. Only had luck with either dealer parts or from a local rebuilder.

I once went through 3 alternators in 2 days from the Ford dealer on one job.