ALTERNATOR SCHOOL BUS B600 B700 B800 CUMMINS 5.9 8.3 1117931 1117954 F3HT-10300-HB F3HZ-10346-H 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: 100 Amps Source: Aftermarket Replaces Part Numbers: 1117931