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Powermaster GM 12si-Style Alternator Chrome


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GM 12si-Style Alternator Chrome
1 left in stock
GM 12si-Style Alternator
  • Chrome
  • 100 Amp
  • 1v Belt Pulley
  • 2" Mounting Flange
  • Ships

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    17294 is rated 4.9 out of 5 by 10.
    Rated 5 out of 5 by from Perfect car parts are getting harder and harder to get because of the pandemic. Jegs came through again for me. This works perfect for my build. Thanks Jegs
    Date published: 2021-03-03
    Rated 5 out of 5 by from 2004 replacement Replaced a Powermaster 85amp that was purchased in 2004. Still worked but internal regulator was over charging So I chose to upgrade to the 100 amp. It looks good and works flawlessly so far on my 350 SBC.
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    Rated 5 out of 5 by from Chrome alternator Product looks great in my chrome engine. Very pleased with its performance.
    Date published: 2020-03-23
    Rated 5 out of 5 by from Excellent Finish I wanted a show quality alternator and got one from POWERMASTER through JEGS. Its perfect and puts out plenty of charge for me. My dead alt was chrome but didn't compare with POWERMASTER at all.
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    Rated 5 out of 5 by from Perfect It had a 3/8 pivit hole but I had to drill it out to 7/16 to fit my application. It went on a Chevy big block 396.
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    Date published: 2016-06-23
    Rated 5 out of 5 by from Quality is great . Easy hook up , looks great and works great. It hold a steady charge not up and down .
    Date published: 2014-12-25
    Rated 4 out of 5 by from Great alternator, but not a direct replacement After turning the alternator upside down and modifing the bracket and replacing the belt to a smaller one due the this pulley being smaller and due to the bigger size, not being able to move it out as far as my stock one. But once it was set, it worked great. But not exactly a drop in for a 71' -74' AMC Javelin. But then again.... what is? :/
    Date published: 2018-12-29
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    Can this be used as a three wire hook up for stock wiring

    Asked by: race98
    You would need to wire the connector in place for your application.
    Answered by: Rusty B
    Date published: 2023-11-26

    Is this safe to use for stock wiring ? I have a 79 corvette.

    Asked by: Jay Jay
    Yes, this will work with the stock wiring.
    Answered by: Rusty B
    Date published: 2018-05-10
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    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.


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    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.