5-1/4in Dia Deep V-Belt Alt Pulley Billet Alum

The 5-1/4in Dia Deep V-Belt Alt Pulley Billet Alum is a precision-engineered alternator pulley designed for high-performance engine builds and classic car restorations where weight reduction and reliability matter. Built from billet aluminum, this alternator pulley replaces stock cast-iron versions to enhance underhood aesthetics and reduce rotating mass. It is suitable for street rods, muscle cars, and custom engines.

Manufactured from solid billet aluminum, this pulley offers superior rigidity compared to cast alternatives. The deep V-belt groove profile ensures positive belt grip and prevents slippage under heavy electrical loads, making it ideal for vehicles running high-output alternators or adding auxiliary accessories like electric fans or compressors.

This pulley is perfect for engine builders, hot rodders, and vintage car restorers upgrading serpentine or V-belt charging systems on small-block and mid-size engines. Its lightweight design at just 1 lb contributes to an overall efficient engine setup, making it a valuable addition for enthusiasts looking to enhance their vehicle's performance.