270 Amp S Series Mitsubishi Alternator for Chrysler/Dodge/JeepBased on our late model large case Mitsubishi housing, this S series of alternator is reasonably priced and very durable, these units feature solid copper custom rectifiers for great durability. Oversize press fit diodes and premium bearings ensure long life even in hot or abusive conditions. This unit comes equipped with a smaller 1. 75 inch diamter alternator pulley, and will require a slightly shorter drive belt for proper belt tension.