UTILITY VEHICLE

The utility vehicle has a door and a window unit detachably mounted to the door. The door includes an inner door panel, an outer door panel, and a door pipe frame supporting the inner door panel and the outer door panel. The window unit includes a window and a window unit pipe frame supporting the window. A plurality of downwardly extending pipe ends of the window unit pipe frame are inserted into a plurality of upwardly open pipe ends of the door pipe frame. The pipe ends of the window unit pipe frame are detachably fixed to the pipe ends of the door pipe frame using a locking device.