Alternator OEM Volvo or AC DELCO

I'd suggest doing the Petroworks CS130 mount kit paired with an AC Delco 88877221. This is the setup I have in my Samurai and it is working great for my needs. Note that while that alternator part number has the correct pulley for the Samurai, the clocking of the housing is not correct so you do have to re-clock the front housing. Also, I would suggest adding a separate direct power output from the alternator to your battery and increasing the size of the battery ground as the stock wiring was not sized for a 100A alternator.

Maintenance I do oil every 10k km including all filters except fuel filter (every 2nd oil change). Basically never burns any oil, didn’t have to fill up at all. Only alternator broke down in extreme heat at 150k km but that’s expected.

Remy and AC Delco are good. I have never had any issues with WAI parts and I had not had any real issues with BBB until very recently.

I had the AC Delco alternator (an OEM part) in my 1994 Saturn SL2 rebuilt in 2015 by Alternator & Starter Co. At the time, no new OEM or aftermarket alternators were available for a Saturn that old, and the guru who advised me on Saturn repairs told me I would have better luck with a local rebuild rather than a commercially remanufactured replacement.

I'm showing a new acdelco 135amp alternator for roughly $163 plus shipping through rockauto.

Acdelco is oem for GM. They make high-quality parts, never been disappointed by one.

ACDelco makes a brand new alternator for $95. They were the OEM for GM.

I went with RockAuto as well, but went with the AC Delco Gold Reman that was wound to have 135 Amp output instead of the OEM standard (~110 I think) I want to say it was around ~$170 with a $45 core deposit. AC Delco is a solid name in parts, and I believe was reman'd in Mexico.

I have a 100A alt from a 900 series and it keeps me powered, but barely. And if I have the stereo loud + headlights and fogs and a/c, I get belt squeal.

I got an ACDelco reman alternator from RockAuto, but it has a grinding feeling and bearing noise when I spin the shaft by hand. I'm not putting that "reman" alternator in the car only to have it fail a few weeks from now.

This was a new genuine Volvo alternator I had Volvo put in, not a cheap or rebuilt part. Also, the battery is only about a year old. Could this really be a failing alternator or could something else be going on?