This door lock and switch assembly is manufactured to lock the door on your front load washer to prevent it from opening while it is running. You may need to replace the door lock and switch if the door does not open or lock. Your washer will not start if the door does not lock. This part is also known as a washing machine door lock assembly. As per the manufacturer, some models require a new wire harness and a door strike for this door lock assembly to work on the appliance. The original style lock would require the door lock kit.