A transfer (22; 200) for a four-wheel drive vehicle, the four-wheel drive vehicle including a driving power source, main drive wheels and auxiliary drive wheels, and a propeller shaft that transmits part of driving power from the driving power source to the auxiliary drive wheels when the four-wheel drive vehicle travels by four-wheel drive, the four-wheel drive vehicle configured to disconnect the propeller shaft from a power transmission path between the auxiliary drive wheels and the driving power source when the four-wheel drive vehicle travels by two-wheel drive, the transfer (22; 200) comprising: an input rotating member configured to be coupled to the driving power source so as to transmit power from the driving power source and to rotate about a first rotation axis; a first output rotating member configured to output the driving power transmitted to the input rotating member from the driving power source, to the main drive wheels; a second output rotating member configured to output the driving power to the propeller shaft; a single-plate or multi-plate wet clutch configured to transmit part of the driving power transmitted to the first output rotating member, to the second output rotating member; an oil pump configured to rotationally drive in conjunction with rotation of the second output rotating member via a first one-way clutch, the first one-way clutch being configured such that the oil pump supplies a lubrication oil to the wet clutch when the four-wheel drive vehicle travels forward by the four-wheel drive, and the oil pump being configured to stop supplying the lubrication oil to the wet clutch when the four-wheel drive vehicle travels forward by the two-wheel drive; characterised by a drive gear for pump drive (158; 202) coupled to the input rotating member in a power transmittable manner, and rotating about the first rotation axis; and a second one-way clutch located in a power transmission path between the oil pump and the drive gear for pump drive (158; 202), wherein the second one-way clutch is configured to transmit a rotational driving power from the drive gear for pump drive (158; 202) in a reverse direction, to the oil pump when the four-wheel drive vehicle travels backward, and configured not to transmit a rotational driving power in a forward direction from the drive gear for pump drive (158; 202), to the oil pump when the four-wheel drive vehicle travels forward. an input rotating member configured to be coupled to the driving power source so as to transmit power from the driving power source and to rotate about a first rotation axis; a first output rotating member configured to output the driving power transmitted to the input rotating member from the driving power source, to the main drive wheels; a second output rotating member configured to output the driving power to the propeller shaft; a single-plate or multi-plate wet clutch configured to transmit part of the driving power transmitted to the first output rotating member, to the second output rotating member; an oil pump configured to rotationally drive in conjunction with rotation of the second output rotating member via a first one-way clutch, the first one-way clutch being configured such that the oil pump supplies a lubrication oil to the wet clutch when the four-wheel drive vehicle travels forward by the four-wheel drive, and the oil pump being configured to stop supplying the lubrication oil to the wet clutch when the four-wheel drive vehicle travels forward by the two-wheel drive; characterised by a drive gear for pump drive (158; 202) coupled to the input rotating member in a power transmittable manner, and rotating about the first rotation axis; and a second one-way clutch located in a power transmission path between the oil pump and the drive gear for pump drive (158; 202), wherein the second one-way clutch is configured to transmit a rotational driving power from the drive gear for pump drive (158; 202) in a reverse direction, to the oil pump when the four-wheel drive vehicle travels backward, and configured not to transmit a rotational driving power in a forward direction from the drive gear for pump drive (158; 202), to the oil pump when the four-wheel drive vehicle travels forward.