The Moroso alternator pulley for GM and Ford applications fits a 21/32-inch diameter shaft and is a single-groove cast aluminum pulley for standard alternator drives. It provides the correct shaft diameter compatibility and single-groove profile for many GM and Ford alternator setups, offering a direct accessory pulley option where a 21/32" shaft alternator is used in compatible applications.
Moroso GM/Ford Alternator Pulley (21/32in Diameter Shaft) - Single Groove - Cast Aluminum