Alternators

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 Alternators




JEGS Performance Products 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
  • $126.99
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    Powermaster GM 12si-Style Alternator Natural


    GM 12si-Style Alternator
  • Natural
  • 150 Amp
  • 1v Belt Pulley
  • Includes: Baffle
  • 2" Mounting Flange
  • $159.99
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    Powermaster GM 12si-Style Alternator Black


    GM 12si-Style Alternator
  • Black
  • 150 Amp
  • 1v Belt Pulley
  • Includes: Baffle
  • 2" Mounting Flange
  • $176.99
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    JEGS Performance Products 1-Wire Micro Mini GM Alternator 55 Amp


    1-Wire Micro Mini GM Alternator
  • 55 Amp
  • 16-Volt
  • Single One Groove V-Belt Pulley
  • Made in the USA
  • $209.99
    Estimated to ship on 04/25/18
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    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
  • $121.54
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