NEW HIGH AMP 250A ALTERNATOR FITS 1996-05 CHEVROLET K SERIES PICKUP 321-1798 321-1803 100% NEW and Made with the Highest Quality Components Available Full One Year Warranty Computer tested for consistent Quality and unsurpassed reliability Alternator - Voltage: 12V Amperage: 250 Amps Regulator: Internal Connector Type: 4 Pins Source: Aftermarket Replaces Part Numbers: 321-1798 321-1798 321-1803 321-1803