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Powermaster GM 12si Style Alternators


Powermaster
Powermaster GM 12si Style Alternators

Product images may differ from actual product appearance.

GM has offered several series of alternators over the years, each time taking a step up in performance. The great thing about these alternators and aftermarket brackets is that for the most part they are interchangeable. Starting with the externally regulated 10dn alternator of the 1960s and moving all the way to the CS130D alternator of late, aftermarket brackets with rod end tensioners will interchange. The 2" mounting foot width is common to all of them and the 6.61" bolt spacing is common (except the CS130D has 7.24" bolt spacing, which many brackets accommodate). Made in the USA.

Features:
  • Excellent Idle Amperage
  • 1 or 3-Wire Operation
  • Most Popular GM
  • Straight Mount 6.61"
  • Available Up to 150 Amps

    Smooth Look Alternators:
  • The Ultimate Custom Billet look at affordable prices
  • Smooth die cast housing with teardrop design
  • One or three wire
  • Available in 100 and 140 amp output
  • Custom HV (high volume) fan - optional
  • Largest selection of fans, pulleys, nose cones, and baffle plates in the industry
  • Smooth back with special Powermaster vents for pull through cooling
  • Gold battery post
  • Available in 4 finishes
  • Proof-of-Performance Tag

    Alternator Plug Type

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.


  • 103 Products Page: 1 2 3 4 ... |  Next Results per Page:
    GM 12si-Style 100 Amp Alternator, V-Belt Pulley

    713-17294
    GM 12si-Style Alternator
  • Chrome
  • 100 Amp
  • 1v Belt Pulley
  • 2" Mounting Flange
  • $141.99
    Ships

    713-17294K
    100 Amp Alternator Kit w/Long Water Pump
  • Small Block Chevy
    Includes:
  • Powermaster GM 12si-Style Alternator
  • JEGS High-Output Alternator Wiring Kit
  • JEGS Billet Alternator Mounting Bracket
  • Easy Kits
    $249.97
    Ships

    713-17297
    GM 12si-Style Alternator
  • Chrome "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • $166.99
    Order Today Ships 10/30/14

    713-27294
    GM 12si-Style Alternator
  • Polished
  • 100 Amp
  • 1v Belt Pulley
  • 2" Mounting Flange
  • $150.99
    Ships

    713-27297
    GM 12si-Style Alternator
  • Polished "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • $166.99
    Ships

    713-7294
    GM 12si-Style Alternator
  • Natural
  • 100 Amp
  • 1v Belt Pulley
  • 2" Mounting Flange
  • $127.99
    Ships
      713-7297
    GM 12si-Style Alternator
  • Natural "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • $147.99
    Order Today Ships 10/30/14
      713-17294-344
    GM 12si-Style Alternator
  • Chrome
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Baffle
  • 2" Mounting Flange
  • $154.99
    Order Today Ships 10/30/14

    713-17297-344
    GM 12si-Style Alternator
  • Chrome "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Baffle
  • $175.99
    Order Today Ships 10/30/14
      713-27294-344
    GM 12si-Style Alternator
  • Polished
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Baffle
  • 2" Mounting Flange
  • $159.99
    Order Today Ships 10/30/14

    713-27297-344
    GM 12si-Style Alternator
  • Polished "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Baffle
  • $175.99
    Order Today Ships 10/30/14
      713-7294-347
    GM 12si-Style Alternator
  • Natural
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Baffle
  • 2" Mounting Flange
  • $132.99
    Order Today Ships 10/30/14

    713-7295
    GM 12si-Style Alternator
  • Natural "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Baffle
  • $152.99
    Order Today Ships 10/30/14

    713-17295
    GM 12si-Style Alternator
  • Chrome "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Baffle & Cone
  • $190.99
    Ships
      713-17295-360
    GM 12si-Style Alternator
  • Satin "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Baffle & Cone
  • $200.99
    Order Today Ships 10/30/14

    713-27294-332
    GM 12si-Style Alternator
  • Polished
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Baffle & Cone
  • $171.99
    Ships

    713-27295
    GM 12si-Style Alternator
  • Polished "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Baffle & Cone
  • $190.99
    Order Today Ships 10/30/14

    713-27295-361
    GM 12si-Style Alternator
  • Polished "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Baffle & Cone
  • $190.99
    Order Today Ships 10/30/14
      713-17297-367
    GM 12si-Style Alternator
  • Chrome "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Cone
  • $181.99
    Order Today Ships 10/30/14
      713-27297-367
    GM 12si-Style Alternator
  • Polished "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Cone
  • $181.99
    Order Today Ships 10/30/14

    713-27295-303
    GM 12si-Style Alternator
  • Polished "Smooth Look"
  • 100 Amp
  • 1v Belt Pulley
  • Includes: Custom HV Fan & 6-Hole Cone
  • $190.99
    Order Today Ships 10/30/14
    GM 12si-Style 100 Amp Alternator, Serpentine Pulley

    713-17294-114
    GM 12si-Style Alternator
  • Chrome
  • 100 Amp
  • 6-Groove Serpentine Pulley
  • 2" Mounting Flange
  • $150.99
    Ships

    713-17297-114
    GM 12si-Style Alternator
  • Chrome "Smooth Look"
  • 100 Amp
  • 6-Groove Serpentine Pulley
  • $172.99
    Ships

    713-27294-114
    GM 12si-Style Alternator
  • Polished
  • 100 Amp
  • 6-Groove Serpentine Pulley
  • 2" Mounting Flange
  • $156.99
    Order Today Ships 10/30/14

    713-27297-114
    GM 12si-Style Alternator
  • Polished "Smooth Look"
  • 100 Amp
  • 6-Groove Serpentine Pulley
  • $172.99
    Order Today Ships 10/30/14
      713-7294-104
    GM 12si-Style Alternator
  • Natural
  • 100 Amp
  • 6-Groove Serpentine Pulley
  • 2" Mounting Flange
  • $132.99
    Order Today Ships 10/30/14
      713-7297-104
    GM 12si-Style Alternator
  • Natural "Smooth Look"
  • 100 Amp
  • 6-Groove Serpentine Pulley
  • $154.99
    Order Today Ships 10/30/14
      713-17294-364
    GM 12si-Style Alternator
  • Chrome
  • 100 Amp
  • 6-Groove Serpentine Pulley
  • Includes: Baffle
  • 2" Mounting Flange
  • $160.99
    Order Today Ships 10/30/14

    713-17297-364
    GM 12si-Style Alternator
  • Chrome "Smooth Look"
  • 100 Amp
  • 6-Groove Serpentine Pulley
  • Includes: Baffle
  • $181.99
    Order Today Ships 10/30/14
      713-27294-364
    GM 12si-Style Alternator
  • Polished
  • 100 Amp
  • 6-Groove Serpentine Pulley
  • Includes: Baffle
  • 2" Mounting Flange
  • $164.99
    Order Today Ships 10/30/14

    103 Products Page: 1 2 3 4 ... |  Next Results per Page: