NEW HIGH AMP ALTERNATOR FITS 1998 1999 2000 CHEVY ASTRO VAN 4.3L 10464084 186-63147 188-6317 10464084 10480251 91533 22011 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 Source: Aftermarket