New direct replacement high amp alternator for Datsun 240Z, 260Z, 280Z and 280ZX, 1970-83. This alternator is rated at 70 amps and bolts up in the same location as the original. Internally regulated. Datsun Z cars 1970-77 have an external regulator so the external regulator will no longer be used. Alternator uses standard flat male/female connectors or you can purchase the optional connector.