A mower assembly adapted to be coupled to a hitch of a work machine. The mower assembly has a sub-frame with one or more hitch couplers adapted to be removably coupled to the hitch of the work machine, a mower arm having a first end and a second end, the first end being pivotally coupled to the sub-frame with a pivot pin, the mower arm is pivotable about the first end between a first position and a second position relative to the sub-frame, an arc-shaped rail positioned about the pivot pin for guiding the mower arm as the mower arm transitions between the first position and the second position, and a mower head mechanically coupled to the mower arm at the second end.
