A removable divider for a row unit of an agricultural header. The divider is configured to be detachably retained by mounting portions of a frame of the row unit. The divider is retained by the mounting portions of the frame when the divider is in a first position relative the row unit for harvesting crop and is removable from the mounting portions when the divider is in a second position relative the row unit. Outward and parallel extending portions abut the frame of the row unit when the divider is in the first position but then allow the divider to be removed from the row unit when the divider is moved into the second position.