Alternator VALEO or Duralast
A brand new Valeo (439317) alternator is $209 on Rockauto and they can be swapped in an hour or two.
The Duralast one looks to have a lifetime warranty.
I then ordered a Valeo from Bimmerworld which arrived seized. Finally ordered the same Valeo from RockAuto (for less money, too) which has been working great so far.
Been running a duralast in mine for about a year no problems.
The only good thing about buying a duralast is it'll be the last alternator that you have to *PAY* for. But it def will *NOT* be the last alternator you install in the truck. Lol
Right on schedule, about 7 months later, that reman also went out and I decided to pay more to get the Duralast Gold which is all new. That one lasted about a year and a half but then the bearings went out on it, but I don't think that issue was the alternator's fault because after I replaced it, I found out the Harmonic Balancer had lost its integrity and was wobbling a little. Again, not sure what caused what (did the bearings put extra pressure on the aging balancer or did the balancer go out and damage the alternator?), but all I can say is that since replacing the harmonic balancer and using the Duralast Gold alternator, I have not had any issues for over 2 years now.
I have a 2007 Chevy suburban and the altenator died so went to Autozone and purchased a new duralast 220.00. This worked for a few days and the battery died again. Checked voltage and only had 9 volts coming from altenator. Took back the altenator for them to bench test and they did not have the proper connections. Gave me another altenator installed worked great for 2 days. This new altenator was also not working and was given a third altenator.
It's probably a crap reman one. The aftermarket reman ones that aren't Valeo, Bosch, or Delphi seem to last a year tops before they die.
Duralast 11120 (if that's what is on the invoice) doesn't have a lot of great reviews...
It was in fact a Duralast dud! One more example of a “new” alternator being broken out of the box.
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