590D - EXCAVATOR 1672 ALTERNATOR, REGULATOR AND CHARGING SYSTEM WIRING Parts group 1672 ALTERNATOR, REGULATOR AND CHARGING SYSTEM WIRING 1672 ALTERNATOR, REGULATOR AND CHARGING SYSTEM WIRING . Alternator (42 AMP, 24 Volt) ( - 319999) Alternator And Pulley ( - 319999) Alternator w/ Voltage Regulator (24V - 40 Amp)