WORK VEHICLE

A work vehicle includes a gear case in which lubricating oil is stored, and a transmission case positioned rearward of the gear case and in which lubricating oil is stored. The work vehicle also includes a communication passage to allow lubricating oil to flow back and forth between the gear case and the transmission case. A rear port, which is in communication with an interior of the transmission case and is for connection to a communication passage, is lower than a front port that is in communication with the interior of the gear case and is for connection to the communication passage.