• Some orders may take longer to arrive due to shipper and supplier delays. Learn More.
Account Login
Gift Cards
Track Order
Help Center

Powermaster GM 12si-Style Alternator Chrome


made in usa

Product Q&A
View Now
Click image to zoom
GM 12si-Style Alternator Chrome
GM 12si-Style Alternator
  • Chrome
  • 150 Amp
  • 1v Belt Pulley
  • 2" Mounting Flange
  • Estimated to ship direct from manufacturer on 10/13/22 , pending manufacturer availability. Learn More

    Items You May Also Consider

    37293 is rated 4.8 out of 5 by 9.
    Rated 5 out of 5 by from Heavy Duty Alternator Excellent and show quality
    Date published: 2021-07-29
    Rated 5 out of 5 by from Best power upgrade I needed more power for my 1964 Chevy Impala SS convertible and that is what I got! I am running 2 compressor 4 valve air ride system with a five channel kicker amp. my lights are not dimming and flickering anymore. Very easy to install, I recommend a Yellow Top Optima battery with the Powermaster alternator and you will be pleased.
    Date published: 2020-05-14
    Rated 5 out of 5 by from Powermaster Alternator This is a good alternator I’m running all msd ignition and a electric fan with stereo system and it’s working fine on my 1964 impala with a Chevy 350 engine.
    Date published: 2019-05-01
    Rated 4 out of 5 by from Awsome alternator works perfect for my aplication
    Date published: 2019-11-17
    • y_2022, m_10, d_4, h_21
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.34
    • cp_1, bvpage1
    • co_hasreviews, tv_5, tr_4
    • loc_en_US, sid_10001_10001_412955, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    I have a three wire alternator on a 350 Chevy nova one goes to power the other two go to one plug that plugs in and it’s a square plug will this work

    Asked by: Johnny
    Powermaster 713-37293 can be used a 1or 3 wire alternator, yes this should work for your 350 nova
    Answered by: langus
    Date published: 2022-09-12

    Will it work on a 66 Chevy c10 283

    Asked by: Toby
    Yes, Powermaster 713-37293 Will work on a 66 Chevy c10 283
    Answered by: langus
    Date published: 2022-07-28

    Will this fit in 1999 Chevy suburban 1500?

    Asked by: Wlos
    No, this will not fit the 99 Chevy Suburban.
    Answered by: Rusty B
    Date published: 2018-07-11

    Hello, The alternators are manufactured where? Are the components American or Chinese?

    Asked by: Evandro
    These are manufactured in the USA.
    Answered by: Rusty B
    Date published: 2020-05-23
    • y_2022, m_10, d_4, h_21CST
    • bvseo_bulk, prod_bvqa, vn_bulk_3.0.34
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_4
    • loc_en_US, sid_10001_10001_412955, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Items You Need

    Easy Kits

    Recently Viewed

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    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.


    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    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.