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1-Wire GM Self-Exciting Alternator 12V 105A Replacement

ASTOU ★ 3.7/5 · ItemOracle Score Mid-Range

$65 USD
Price subject to change
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1 Wire System GM Self-Exciting Alternator for 10SI SBC BBC Replacement 12V 105Amp ASTOU Alternator for 7127-SE105 ADR0335 400-12340 20-102-7

One-wire self-exciting alternator replacement for GM SBC/BBC with simple BAT+ hook-up. Direct GM 10SI replacement fits factory brackets for Chevy/GMC/Cadillac vehicles. Customers note easy installation and immediate charging with steady 14V

Highlights

  • self-exciting one-wire hookup
  • direct bolt-in to factory brackets
  • 105A output with 12V system

Pros

  • easy plug-and-play installation
  • direct GM 10SI replacement
  • fits factory brackets for multiple GM engines
  • stable charging around 14 volts
  • positive user sentiment on quality

Cons

  • only 1-wire hookup referenced
  • some statements may rely on user experience
  • requires BAT+ connection to battery

Best For

  • retrofit GM 10SI systems
  • replace failing alternator in SBC or BBC engines
  • upgrade to self-exciting 12V 105A unit
  • classic Chevy/GMC/Cadillac restorations
  • install in Camaro/Corvette/C10 trucks

Features

  • Plug-and-play installation with direct BAT+ connection to battery; no ignition switch needed
  • Direct GM 10SI replacement compatible with SBC and BBC factory brackets for Chevrolet platforms
  • Self-activating charging starts at 1,000 RPM with a precision regulator maintaining ~14.2V
  • Industrial-grade copper windings and triple-sealed bearings for durability and reliability

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