Abstract: Harvesting vehicle, in particular forage harvester or combine harvester, comprising a mounting frame (10), wherein the mounting fame (10) is designed to couple an attachment to the mounting frame (10) and via the mounting frame (10) to the harvesting vehicle, and comprising a drive coupler (16) which engages with the mounting frame (10) and which is designed to form a drive connection between the attachment and the harvesting vehicle in order to transmit a drive power provided by the harvesting vehicle in the direction of the attachment, wherein the drive coupler (16) has a drive hub (17) which can be coupled to the harvesting vehicle, a coupling disk (19) which can be coupled to the attachment and a centering mandrel (22) which cooperates with the attachment, wherein the centering mandrel (22) is fixedly engaged with the coupling disk (19), a slide piece (24) which can be displaced in a translatory manner relative to the drive hub (17) is coupled fixedly in terms of rotation to the drive hub (17), and wherei