1963-1982 Powermaster GM 12si Alternator Natural 100A 1V Pulley 1 or 3 Wire
Upgrade your Corvette's performance with the 1963-1982 Powermaster GM 12si Alternator. Designed to deliver dependable power, this alternator offers the flexibility of both a 1-wire or OE setup, making it an ideal choice for restoration projects or custom builds. Crafted with a natural finish, it adds a sleek, factory-fresh look under the hood. Engineered for durability and efficiency, the Powermaster 12SI alternator ensures your Corvette's electrical system runs smoothly, whether you're cruising or pushing it to the limit. Enhance your vehicle's charging system with this high-quality, easy-to-install alternator.
- American-made.
- High output performance.
- Durable construction.
- Direct-fit installation.
- Advanced technology.
- Enhanced reliability.
- Long-term durability.
- Improved electrical system efficiency.
- Increased accessory power.
| Model Year | 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982 |
|---|---|
| Base Unit of Measure | EA |
| Search Description | 63-82 ALT GM 12SI NATURAL 100A 1V PULLEY 1/3 WIRE |
| Net Weight | 13.000000 |






















