This Tuff Stuff Factory Cast PLUS alternator delivers 140 amps at 12V for GM applications. It uses a 1-Wire self-exciting regulator and a 6-rib serpentine pulley on a natural-finish aluminum case.
- Type: Alternator, Factory Cast PLUS
- Output: 140 amps
- Voltage: 12V
- Regulation: 1-Wire self-exciting
- Pulley: 6-rib serpentine
- Case: Aluminum
- Finish: Natural
- Application: GM
- Part number: 7127K6G
FAQ
Is external wiring needed to make this alternator charge?
No. The 1-Wire self-exciting regulator needs only a single charging lead to the battery.
What is the amperage rating of the 7127K6G?
It is rated at 140 amps at 12V.
What pulley style does it use?
It uses a 6-rib serpentine pulley.

