Fits Bobcat Skid Steer Loader(s) 553, 751, 753, 763, 773, 863, 873 (all F Series Built 1991-'99) All Weather Safety Door, Door has full size heavy duty vinyl window plus flap at the bottom for cold weather protection Door is "locked" in place by operator with shock cord and S-hook The door can be installed and removed in seconds -- 2 steel hinge pins on the door simply drop into hinge brackets which mount on the loader frame.