I’m running my a 120amp Bosch but my car is m42 it’s honestly overkill for my setup with aftermarket speakers, amp, and sub.
bosch alternator is better. get a bosch alternator.
Rockauto.com shows reman units, both Bosch and Valeo. As far as interchange with Bosch, I dont know, but worked at the dealer and they always asked if it was Bosch or Veleo because it could not be determined by Vin.
I managed to get a reman Bosch 150a/140a last year from Advance Auto for around $190.
I just replaced the one in my daughter's Mk 4 with a rebuilt 120A Bosch one from Rock Auto last week.
Upon retrieving the information to answer you correctly I discovered that my original alternator was a Bosch 140Amp/14Volt. My new alternator is an A-Premium 140Amp/12Volt.
I've replaced the alternator Bosch 0124615028 with an identical part number one. Then I replaced the F00M-145-435(or 385 depending on where you look) regulator on it with a AS-PL ARE0075P. Both regulates to the same voltage, 14.2V.
I had a Bosch alternator die in <6 months. Got installed in November 2024 and it died a few weeks ago.
I picked up a 07 jetta 2.5 from the auction for a good deal and only 95k on it. The problem is the battery is not charging, figured ok needs new alternator put a bosch unit in and it is still not charging the battery. Put multi meter to the post on alternator and it is only putting off 11.5v.
I recently had two brand new Bosch remanufactured alternators fail. One after six weeks, and one was bad right out of the box.
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