A divider of a header for an agricultural vehicle including a divider body, a receiving member configured for being connected to the frame of the header, and an adjustable connector positionable in between an unfolded work position and a folded transport position. The adjustable connector includes a first member, a second member, and an articulating joint for pivotally connecting the first and second members. The first member mounts the divider body, the second member is slidably connected to and received within the receiving member, and the articulating joint is at least partially received within the receiving member in the unfolded work position such that the first and second members are substantially immobilized and the articulating joint is positioned outside of the receiving member in the folded transport position such that the first and second members are movable relative to one another.