A tractor hitch has a pivoting hitch arm (13) carrying an implement mounting plate (16) at its outer-end. Lift means (15) are provided for pivoting the hitch arm to raise and lower the mounting plate, and a lower link unit (18) is mountable on the mounting plate for providing an alternative mount for implements via lower links mounted on the plate. The lower link unit may be pivotally mounted (20)on the mounting plate (16) so that when it is desired to mount an implement un the mounting plate the lower link unit can be pivoted to a non-operative position in which the mounting plate is clear for the attachment of implements.