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Powermaster CS121 Style Alternator


Powermaster
Powermaster CS121 Style Alternator

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 U.S.A.

Features:
  • True one-wire hookup with set voltage of 14.6
  • High output to weight ratio; excellent idle output
  • Proof-of-Performance Tag
  • Gold Battery Post

    75A Specifications
  • 60A @ 2,400 RPM @ 7.2 VDC @ 77F
  • Operating Range: -40C to 150C
  • Maximum RPM: 18,000

    100A Specifications
  • 60A @ 2,400 RPM @ 13.2 VDC @ 77F
  • Operating Range: -40C to 150C
  • Maximum RPM: 18,000

    Note: XS Volt is a powerful internal regulating system. These one-wire alternators offer the highest stability available for modern electrical systems.
  • Digital Control: Response time in milliseconds, compared to seconds for analog regulators
  • Adjustable Voltage: Adjustable between 13.5 and 18.5 volts. Great for 12V or 16V systems
  • Powerful, Reliable Internals: Short circuit protection and loss of ground protection in a sealed, vibration-resistant housing
  • One-Wire Operation: Easy to connect, turns on and off with the engine

    The XS Volt gives a great deal of control and provides many benefits even without adjustment. With its digital regulator, lightning quick response time, and the stability a digital system provides, electronic components function better.



  • 11 Products
    75 Amp

    713-8060
    CS-121 Alternator
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  • 1-Wire Hook-Up
  • Natural Finish
    More info on Powermaster 8060

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    100 Amp

    713-179261-114
    CS-121 Alternator
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  • 1-Wire Hook-Up
  • Serpentine 6-Groove Pulley
  • Chrome Finish
    More info on Powermaster 179261-114

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    713-18062
    CS-121 Alternator
  • 100 Amp
  • 1-Wire Hook-Up
  • Chrome Finish
    More info on Powermaster 18062

    Fits Applications
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  • $233.99
    Order Today Ships 05/01/14
    Racing Alternators

    713-8062
    CS-121 Alternator
  • 100 Amp
  • 1-Wire Hook-Up
  • Without Pulley
  • Black Finish
    More info on Powermaster 8062

    Fits Applications
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  • $247.99
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    713-8066
    CS-121 Alternator
  • 100 Amp
  • 1-Wire Hook-Up
  • For 16V Systems
  • Without Pulley
  • Black Finish
    More info on Powermaster 8066

    Fits Applications
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  • $269.99
    Order Today Ships 05/01/14

    713-8068
    CS-121 Alternator
  • 100 Amp
  • Black Finish
  • XS Volt
    More info on Powermaster 8068

    Fits Applications
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  • $269.99
    Order Today Ships 05/01/14

    713-8072
    CS-121 Alternator
  • 100 Amp
  • 1-Wire Hook-Up
  • Fits 3-Bolt Bracket Only
  • Black Finish
    More info on Powermaster 8072

    Fits Applications
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  • $249.99
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    713-8076
    CS-121 Alternator
  • 100 Amp
  • 1-Wire Hook-Up
  • Fits 3-Bolt Bracket Only
  • For 16V Systems
  • Black Finish
    More info on Powermaster 8076

    Fits Applications
    • FREE
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  • $259.99
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    713-8078
    CS-121 Alternator
  • 100 Amp
  • Fits 3-Bolt Bracket Only
  • Black Finish
  • XS Volt
    More info on Powermaster 8078

    Fits Applications
    • FREE
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      & HANDLING!
  • $271.99
    Order Today Ships 05/01/14
    CS-121 Alternators

    713-179261
    CS-121 Alternator
  • 100 Amp
  • 1-Wire Hook-Up
  • Chrome Finish
    More info on Powermaster 179261

    Fits Applications
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      & HANDLING!
  • $259.99
    Order Today Ships 05/01/14

    713-279261
    CS-121 Alternator
  • 100 Amp
  • 1-Wire Hook-Up
  • Polished Finish
    More info on Powermaster 279261

    Fits Applications
    • FREE
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      & HANDLING!
  • $259.99
    Order Today Ships 05/01/14

    11 Products