NEW FOR 2017. . IN STOCK WITH INTRODUCTORY SALE PRICING!! 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 great output: 180 amps at engine idle speeds and a full 250 at cruising speeds. This unit comes with an OEM diameter pulley, making it perfect for high RPM and racing use and uses stock belt length. Installation Notes: This unit may require a rectangle to oval adapter harness if the vehicle was equipped with the CS144 Heavy duty charging option from the factory. (this is not common)