Alternator

JEGS has a huge selection of high performance alternators from Billet Specialties, East Coast Auto Electric, MSD Ignition, March Performance, Powermaster and more. With varying amp levels, you can get just the right alternator to meet your needs. Choose from steel, chrome, billet aluminum and more for just the right look on the front of your motor. Power up your car, truck or street rod with a high performance alternator from JEGS. Look below for an alternator wire kit or installation harness to install your new alternator professionally.

Individual Products Product Groups
Starters & Alternators Alternator

JEGS Ford 1-Wire Alternator 100 amp
Ford 1-Wire Alternator
  • 100 amp
  • Single One Groove V-Belt Pulley
  • Black
  • Made in the USA
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    • $106.94
    Ships Monday
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    (13)

    JEGS GM 100 Amp Alternator 1971-86
    GM 100 Amp Alternator
  • 1971-86
  • Polished
  • With Internal Regulator
  • Made in the USA
    Includes:
  • Single One Groove V-Belt Pulley
  • Fan
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    • $126.94
    Estimated to ship on 08/27/18
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    (5)

    Powermaster GM 12si-Style Alternator Chrome
    GM 12si-Style Alternator
  • Chrome
  • 150 Amp
  • 1v Belt Pulley
  • 2" Mounting Flange
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    • $179.99
    Ships in 24hrs directly from the manufacturer
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    JEGS Ford 1-Wire Alternator 100 amp
    Ford 1-Wire Alternator
  • 100 amp
  • Single One Groove V-Belt Pulley
  • Chrome
  • Made in the USA
    View Details
    • $141.94
    Ships Monday
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    (7)

    Powermaster GM Delco-Style Alternator Natural
    GM Delco-Style Alternator
  • Natural
  • 100 Amps
  • 1v Belt Pulley
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    • $126.99
    Ships in 24hrs directly from the manufacturer
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    (5)

    JEGS Ford 1-Wire Alternator 100 amp
    Ford 1-Wire Alternator
  • 100 amp
  • Single 6-Rib Serpentine Pulley
  • Black
  • Made in the USA
    View Details
    • $121.99
    Ships Monday
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    (3)

    Powermaster GM 12si-Style Alternator Black
    GM 12si-Style Alternator
  • Black
  • 150 Amp
  • 1v Belt Pulley
  • Includes: Baffle
  • 2" Mounting Flange
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    • $169.99
    Ships Monday
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    (1)

    JEGS 1-Wire Micro Mini GM Alternator 55 Amp
    1-Wire Micro Mini GM Alternator
  • 55 Amp
  • 12-Volt
  • Single One Groove V-Belt Pulley
  • Made in the USA
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    • $239.99
    Ships Monday
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    (1)

    JEGS Ford 1-Wire Alternator 100 amp
    Ford 1-Wire Alternator
  • 100 amp
  • Single 6-Rib Serpentine Pulley
  • Chrome
  • Made in the USA
    View Details
    • $141.94
    Ships Monday
    FREE Shipping
    Lowest Price Guarantee
    (1)

    JEGS GM 100-Amp Alternator 1962-71
    GM 100-Amp Alternator
  • 1962-71
  • Single One Groove V-Belt Pulley
  • Chrome
  • Made in the USA
    View Details
    • $99.99
    Ships Monday
    Lowest Price Guarantee
    (1)

    Powermaster GM 12si-Style Alternator Natural
    GM 12si-Style Alternator
  • Natural
  • 150 Amp
  • 1v Belt Pulley
  • Includes: Baffle
  • 2" Mounting Flange
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    • $144.99
    Ships Monday
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    (1)

    Speedmaster High Output 3-Wire Alternator & Bracket Kit Small Block Chevy W/Long Water Pump
    High Output 3-Wire Alternator & Bracket Kit
  • Small Block Chevy W/Long Water Pump
  • 100 amp
  • 12 V
  • V-Belt Pulley
  • Internal Regulator
  • Chrome Plated Finish
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    • $121.54
    Ships Monday
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    (1)

    Speedmaster High Output 1-Wire Alternator & Bracket Kit Small Block Ford 289/302W
    High Output 1-Wire Alternator & Bracket Kit
  • Small Block Ford 289/302W
  • 100 amp
  • 12 V
  • V-Belt Pulley
  • Internal Regulator
  • Chrome Plated Finish
    View Details
    • $132.87
    Estimated to ship directly from the manufacturer on 09/04/18
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    (2)