A vehicle AC power generator comprising: a rotor that is fixed on a rotation axle pivotably supported by a housing and is disposed in the housing; a stator that has a stator iron core and a stator winding wound around the stator iron core and is supported by the housing in such a way as to surround the rotor; a rectifier that is disposed at the outside of one axle-direction side of the housing, that is fixed to the housing, and that rectifies AC electromotive force generated across the stator winding; a voltage adjuster that is disposed at the outside of one axle-direction side of the housing, that is fixed to the housing, and that adjusts the voltage value of the AC electromotive force to a specified value; and a resin-made protection cover that is produced in the shape of a bottomed tube having a bottom portion and a tubular circumferential wall portion and that is mounted on the housing in such a way as to cover the rectifier and the voltage adjuster, wherein there are provided an attachment member that penetrates a through-hole formed in the bottom portion of the protection cover and is fixed to a portion at one axle-direction side of the housing, an output terminal that extends from the rectifier toward the outside of one axle-direction side of the protection cover, and an insert coated conductor that is supported by the output terminal and the attachment member, that is provided on the rear surface of the protection cover, and that is formed as a member separated from the protection cover and outside of the bottom portion of the protection cover. a rotor that is fixed on a rotation axle pivotably supported by a housing and is disposed in the housing; a stator that has a stator iron core and a stator winding wound around the stator iron core and is supported by the housing in such a way as to surround the rotor; a rectifier that is disposed at the outside of one axle-direction side of the housing, that is fixed to the housing, and that rectifies AC electromotive force generated across the stator winding; a voltage adjuster that is disposed at the outside of one axle-direction side of the housing, that is fixed to the housing, and that adjusts the voltage value of the AC electromotive force to a specified value; and a resin-made protection cover that is produced in the shape of a bottomed tube having a bottom portion and a tubular circumferential wall portion and that is mounted on the housing in such a way as to cover the rectifier and the voltage adjuster, wherein there are provided an attachment member that penetrates a through-hole formed in the bottom portion of the protection cover and is fixed to a portion at one axle-direction side of the housing, an output terminal that extends from the rectifier toward the outside of one axle-direction side of the protection cover, and an insert coated conductor that is supported by the output terminal and the attachment member, that is provided on the rear surface of the protection cover, and that is formed as a member separated from the protection cover and outside of the bottom portion of the protection cover. an attachment member that penetrates a through-hole formed in the bottom portion of the protection cover and is fixed to a portion at one axle-direction side of the housing, an output terminal that extends from the rectifier toward the outside of one axle-direction side of the protection cover, and an insert coated conductor that is supported by the output terminal and the attachment member, that is provided on the rear surface of the protection cover, and that is formed as a member separated from the protection cover and outside of the bottom portion of the protection cover.