The first conversion kit listed actuates the BU1060 Bale Unroller. A hydraulic cylinder, hoses, and fittings are needed to actuate the squeeze feature of the bale unroller.
The second conversion kit listed is a hydraulic lift mechanism to fold the DM1140 Disc Mower for transport. This is standard equipment on all DM1140 Disc Mowers.
The third conversion kit listed is a power take-off (PTO) hydraulic drive for the HM1109 Hay Merger. It is a self-contained hydraulic system used to operate the merger if the tractor's hydraulic system has insufficient capacity.