WORK VEHICLE

A work vehicle includes:a power transmission shaft (38) drivable to rotate;a shaft holder (30) holding the power transmission shaft (38) in such a manner that the power transmission shaft is rotatable; anda hydraulically operable section configured to operate in response to receiving operating oil,the power transmission shaft (38) including:a shaft groove (71-74) extending entirely around an outer circumferential portion of the power transmission shaft (38);an inlet port (75-78) extending inside the power transmission shaft (38) in a radial direction of the power transmission shaft and connected with the shaft groove (71-74); anda supply oil passage (81-84) extending inside the power transmission shaft (38) in a longitudinal direction of the power transmission shaft and connected with the inlet port (75-78) inside the power transmission shaft (38).