Tuff Stuff Performance 7127D9 GM Alternator 100 Amp Internal Regulator Factory Cast

The Tuff Stuff Performance 7127D9 is a high-output 100-amp GM-style alternator designed for reliable electrical performance in classic and custom automotive applications. This alternator features an internal regulator design and comes in a natural factory cast finish, offering an OEM appearance for traditional builds.

Key Features:

• 100-amp output provides ample power for stock and mildly modified electrical systems
• Internal voltage regulator simplifies installation and wiring
• OEM or 1-wire capable operation for flexible installation options
• V-groove pulley included for compatibility with standard belt systems
• Factory Cast PLUS+ finish delivers authentic as-cast appearance
• 9 o'clock clocking position for mounting orientation
• Direct fit GM alternator replacement for various applications

This alternator is ideal for street rods, muscle cars, and classic vehicles requiring dependable charging performance with a period-correct look. The versatile 1-wire capability allows for simplified wiring in custom installations, while the traditional 3-wire hookup remains available for stock applications.