A locomotive brake controller that has a body configured to interconnect to a desktop location in the cab of a locomotive and a mount that can attach the base of the controller to a vertical stand in the cab of a locomotive. The controller also includes an operator interface adaptor that can be clocked relative to the body and an operator face plate that can be clocked relative to the mount depending on the location of installation to ensure proper tilting of the interface relative to the operator and proper orientation of the operator display. Alternatively, the adaptor may include a fixed face plate that includes a moveable display and an adhesive membrane with operator buttons to properly orient the display.