Powermaster 57293 GM 12SI 150 Amp Alternator with Single V-Belt Pulley

Upgrade your vehicle’s charging system with the Powermaster 57293 GM Original Look 12SI alternator. Designed for dependable electrical performance, this 150-amp, 12-volt alternator delivers increased output while maintaining the familiar appearance and fitment style of a GM 12SI unit. Its versatile configuration supports both 1-wire and 3-wire installation options, making it suitable for a variety of custom, restoration, and performance applications.
The alternator features a single V-belt pulley and a durable aluminum case finished with a black powder coat. The housing provides a clean, period-correct appearance while helping protect the alternator from routine under-hood conditions. Built by Powermaster, part number 57293, this unit is engineered as a practical replacement or charging-system upgrade for compatible GM applications.
Designed for straightforward integration, the Powermaster 57293 combines classic GM styling with higher-output capability. Verify vehicle compatibility, pulley arrangement, wiring requirements, and mounting configuration before installation. This alternator is supplied as a complete unit for applications requiring reliable 12-volt charging performance and GM-style components.

Features:

• Brand: Powermaster

• Part Number: 57293

• Application: GM Original Look 12SI alternator

• Output: 150 amps

• System Voltage: 12 volts

• Wiring: Compatible with 1-wire or 3-wire installation

• Pulley: Single V-belt pulley

• Housing: Aluminum case

• Finish: Black powder coat

• Quantity: Sold individually