Powermaster 57294 GM-Style 12SI 150 Amp 12V One-Wire Alternator

Upgrade your charging system with the Powermaster 57294 GM-style 12SI alternator, engineered to deliver 150 amps of dependable 12-volt electrical output. Its one-wire design simplifies installation by using a single connection for charging control, making it a practical choice for custom builds, classic vehicles, and applications requiring a clean, straightforward wiring setup.
The alternator features a GM original-look configuration with a straight-mount design and a single V-belt pulley. Its aluminum case supports reliable heat management while the black powder-coated finish provides a clean, durable appearance that complements engine compartments and restoration projects. The 12SI-style housing maintains a familiar GM appearance while providing modern charging performance.
Designed for use with compatible GM mounting and belt-drive systems, the Powermaster 57294 is built for dependable operation in demanding automotive environments. Verify vehicle fitment, mounting arrangement, pulley alignment, and belt configuration before installation. This alternator is sold individually and provides a practical combination of high-output performance, simplified wiring, and classic GM styling.

Features:

• Brand: Powermaster

• Part Number: 57294

• Application: GM-style 12SI alternator

• Output: 150 amps

• Voltage: 12 volts

• Wiring: One-wire design

• Pulley: Single V-belt pulley

• Mounting: Straight mount

• Housing: Aluminum case

• Finish: Black powder coat

• Appearance: GM original-look styling

• Quantity: Sold individually