Aeromotive 32 Percent Overdrive Alternator Pulley - Serpentine Drive P/N: 21102
Ford & GM
Aeromotive overdrive alternator pulley - serpentine drive. 32% overdrive alternator pulley. Designed to restore the charging capacity of late model vehicles that use serpentine belt drive systems with an underdrive crank pulley. CNC-machined of 6061-T651 billet aluminum alloy. Includes mounting hardware.