New Mercruiser ALTERNATOR FITS 260 MIE GM 5.7L - 8cyl 1987 20054 60050 12449 19685 817119 817119-1 817119A1 817119A4 98555 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: 55 Amps Source: Aftermarket