Powermaster 8002 100 Amp GM-Style 12SI Race Alternator

The Powermaster 8002 100 Amp Delco alternator delivers dependable charging performance for GM-style race and performance applications. Designed around the popular 12SI configuration, this 12-volt alternator provides 100 amps of output to support essential electrical systems while maintaining a compact, race-ready design. Its natural aluminum case offers a clean appearance and helps provide durable service in demanding environments.
This Powermaster alternator features a flexible 1-wire/3-wire configuration, allowing it to suit a variety of installation and wiring requirements. The single V-belt pulley is compatible with traditional belt-drive systems, while the straight-mount design supports straightforward installation on appropriate GM applications. The GM-style fitment makes the Powermaster 8002 a practical replacement or upgrade for vehicles using a compatible Delco-style alternator.
Built for performance-focused users, the Powermaster 8002 combines efficient charging capability with proven alternator architecture. Its 12SI design is widely recognized for serviceability and compatibility across many custom, racing, street-performance, and restoration projects. Verify mounting provisions, pulley alignment, belt type, and wiring configuration before installation to ensure proper fitment and operation. This alternator is sold individually and is intended for applications requiring a GM-style, 12-volt charging solution.

Features:

• 100-amp output supports the electrical demands of performance and racing vehicles

• GM-style Delco 12SI alternator design for compatible applications

• 12-volt electrical system compatibility

• Selectable 1-wire or 3-wire wiring configuration

• Single V-belt pulley for traditional belt-drive systems

• Straight-mount configuration for compatible GM installations

• Natural aluminum case provides a clean, durable finish

• Designed for race, street-performance, restoration, and custom vehicle applications