for Komatsu D21, D20, and D31
The Komatsu D21/20 and some D31 bulldozers came with a fiberglass rain canopy installed which can be replaced by either a ROPS or Utility canopy. Utility canopies and brackets are slightly lighter than the ROPS canopy and do not have a certification tag but are less costly.There is also a heavy duty utility canopy available which has a heavier steel construction, heavy brackets and rear screen. These canopies are built to order and shipped from Oklahoma. Brackets bolt on and then the frame is welded to the bracket as shown.