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Thread: Anyone using a 90A Alternator?

  1. #51
    Join Date
    Oct 2008
    Location
    Laval, Qc. Canada
    Posts
    338
    My Cars
    '79 Real Rally Car !
    I found it easier to fit the M20 that already came with the 90amp alternator.

  2. #52
    Join Date
    Dec 2010
    Location
    Fairfield, CA
    Posts
    67
    My Cars
    72 Bavaria


    This is an AC Delco CS130 105A alternator on my M30. They are cheap, readily available and basically bolt right on.

  3. #53
    Join Date
    Nov 2005
    Location
    Mills River, NC
    Posts
    3,958
    My Cars
    '82 E21 320i
    Quote Originally Posted by Mike Goble View Post
    This is an AC Delco CS130 105A alternator on my M30. They are cheap, readily available and basically bolt right on.
    All the ones I see F.S. have a serpentine pulley. Did you have to swap the pulley for v-belt?
    Eric P.

  4. #54
    Join Date
    Dec 2010
    Location
    Fairfield, CA
    Posts
    67
    My Cars
    72 Bavaria
    I did swap the pulley, and I had to buy a different belt. I got this particular alternator from Pick-n-Pull for $22. There are a lot of almost new repair parts on these cars, folks get them going then they can't pass smog and they are junked. I swapped pulleys right in the yard, using one from an older car, and got the pigtail for the regulator as well.

  5. #55
    Join Date
    Nov 2005
    Location
    Mills River, NC
    Posts
    3,958
    My Cars
    '82 E21 320i
    Quote Originally Posted by Mike Goble View Post
    I did swap the pulley, and I had to buy a different belt. I got this particular alternator from Pick-n-Pull for $22. There are a lot of almost new repair parts on these cars, folks get them going then they can't pass smog and they are junked. I swapped pulleys right in the yard, using one from an older car, and got the pigtail for the regulator as well.
    Ha! $22! Sonofabitch!
    Eric P.

  6. #56
    Join Date
    Jul 2011
    Location
    webster,tx
    Posts
    55
    My Cars
    1983 bmw 320i
    nicee! any pne have one for sale
    ?

  7. #57
    Join Date
    Oct 2010
    Location
    Houston
    Posts
    76
    My Cars
    1980 & 1983 BMW 320I
    got a 90 amp off a 325, no grinding or fabricating, just a different size belt and a little adjusting and it worked fine.

  8. #58
    Join Date
    Feb 2010
    Location
    Seattle,WA
    Posts
    59
    My Cars
    1976 02
    I picked up a rebuilt 90 amp alternator on ebay from bnrparts for around $120

  9. #59
    Join Date
    Jan 2010
    Location
    australia
    Posts
    199
    My Cars
    E21 320i 2.0ltr "79"
    I bought a 90 Amp alternator from a shop in New Jersey. Direct bolt in,

  10. #60
    Join Date
    Nov 2007
    Location
    Sacramento, California
    Posts
    4,713
    My Cars
    1980 BMW 320i E21 M10B18
    bnr parts has 80 and 90 amp alternators for e21 320i 80-83, direct bolt in.

  11. #61
    Join Date
    Jul 2014
    Location
    Richfield Utah
    Posts
    412
    My Cars
    1981 BMW 320i
    Your engine is beautiful O.o

  12. #62
    Join Date
    Feb 2011
    Location
    Bayview, WI
    Posts
    2,918
    My Cars
    1983 BMW 320i M20 Turbo
    Way to bump an old ass thread
    1999 Z3 Coupe 2.8L


    CHECK OUT >>>
    RAGE DRIFT DESIGNS <<< FOR DECALS AND MORE!

  13. #63
    Join Date
    Jul 2014
    Location
    Richfield Utah
    Posts
    412
    My Cars
    1981 BMW 320i
    fifn't notice how old the thread was when I replied to it lol sorry

  14. #64
    Join Date
    Jun 2014
    Location
    San Pedro, CA
    Posts
    342
    My Cars
    E21, E34, E39, POS2015VW
    I've found the voltage regulator with brushes from Pelican, but does anybody know where to get the bearings? They're not worn down completely, but it only seems right to replace them at the same time as I complete my upgrade to 80amps.
    Also, how in the world do you get the bearing off? With a puller?

    - - - Updated - - -

    Quote Originally Posted by pommeree View Post
    Ha! $22! Sonofabitch!
    Did the same just last week. Also got a muffler in mint condition. Love me some half off today.

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