High Output 370 Amp BLACK Alternator 14-19 GM Silverado Tahoe Suburban Escalade SierraNewly redesigned for 2020, The Elite series offers the highest possible amperage and durability available in a large case alternator. 6 phase technology combined with massive twin rectifier assemblies and 12 diodes makes these alternators totally durable for daily use, while still maintaining 200+ amps at engine idle speeds. Installation Notes: This unit comes equipped with a smaller 1. 75 inch diameter alternator pulley, and will require a slightly