I can always trust SweepScrub to have the part I need at a great price.
This machine has been replaced by the Karcher Chariot CV 60/1 Deluxe
The Chariot™ 2 iVac ATV HEPA is a high-performance, multi-surface cleaning, HEPA stand-on commercial vacuum. It is designed for increased productivity and maneuverability on hard and soft floors, including carpet, tile, wood, concrete, stone, rubber or VCT. The Chariot™ patented stand-on design makes vacuuming floors easier with its best-in-industry 360-degree visibility, and an intuitive control panel simplifies training for additional users. In applications where a sweeper, wide-area vacuum, or dust mop can be used, the Chariot™ 2 iVac ATV HEPA vacuum is all you need.