70 amp internally regulated self exciting single wire Mini Alternator Kit for the Datsun L Series Engine!  This alternator has double the output of the OE unit and is internally regulated. This allows you to remove the external voltage regulator from your engine bay, and enough power for running modern accesories and a clean looking engine bay!  Includes alternator, belt, tensioner and all hardware required to complete the installlation. Alternators have a 1 year warranty from date of purchase.