Powermaster 37293 Chrome GM-Style 12SI 150 Amp Alternator

Upgrade your vehicle’s charging system with the POWERMASTER 37293 Chrome GM-Style 12SI Alternator. Designed for GM applications, this 12-volt alternator delivers 150 amps of output to support demanding electrical systems while maintaining the familiar appearance of a Delco-style unit. Its polished chrome finish and aluminum case provide a clean, performance-oriented look for street rods, restorations, custom builds, and other compatible vehicles.
The POWERMASTER 37293 features a single V-belt pulley and straight-mount configuration for installation in applications designed for this mounting style. Its flexible 1-wire/3-wire design supports different wiring setups, helping simplify installation or integrate with an existing vehicle charging system. Verify pulley alignment, mounting configuration, electrical connections, and vehicle compatibility before installation.
Built for dependable charging performance, this GM-style 12SI alternator combines high output with a compact, traditional design. The 150-amp rating provides additional electrical capacity for accessories such as upgraded lighting, audio equipment, cooling fans, ignition components, and other power requirements. Professional installation is recommended to ensure proper wiring, belt tension, grounding, and charging-system operation.

Features:

• Brand: POWERMASTER

• Part Number: 37293

• Application: GM-style 12SI alternator

• Output: 150 amps

• Voltage: 12 volts

• Wiring: Compatible with 1-wire and 3-wire configurations

• Pulley: Single V-belt pulley

• Mounting: Straight mount

• Case: Aluminum

• Finish: Chrome

• Included: Alternator sold individually