4in Dia Deep V-Belt Alt Pulley Billet Aluminum

The 4in Dia Deep V-Belt Alt Pulley Billet Aluminum from POWERMASTER (model 182) is designed for high-output alternator installations where precision and durability are essential. This pulley serves as the mounting interface between your alternator and engine belt, making it ideal for classic hot rods, street machines, and modern performance builds.

Machined from solid billet aluminum, this deep V-belt pulley combines lightweight construction with exceptional strength, crucial for running oversized alternators that require consistent torque transmission. The 4-inch diameter and deep V-groove profile are specifically designed to maximize belt grip and minimize slippage under heavy electrical loads.

This pulley is particularly beneficial for builders installing high-output alternators in street rods, muscle cars, drag builds, and restorations. Its lightweight design helps reduce parasitic drag on your engine while maintaining the structural integrity needed for high-RPM applications.