SEARCH  Electrical Circuits, Switches  Coolant Temperature        Senders  Digital Transmission Range        Sensors  Headlight Switch Assemblies  Ignition Cylinder Assemblies  Ignition Switch Assemblies  Multifunction Switch        Assemblies  Oil Pressure Senders  Starter Relays  Transmission Range        Sensors  Turn Signal/Hazard Warning        Light Relays  Wiper Control Modules Ignition Cylinder Assemblies Motorcraft® Ignition Cylinder Assemblies: Are subjected to rigorous design and product validation standards as required by Ford Motor Company engineering specifications Are produced using the same quality and design standards as OEM products Are accompanied by Ford Motor Company approved installation instructions showing component detail and recommended installation procedures Why an Ignition Cylinder Assembly May Fail Use of worn keys or improperly cut keys may damage the tumblers Trying to pull the key from the cylinder before the vehicle transmission has been placed in "Park" may also damage the tumblers Steering column damage may also damage the cylinder or its connections to the starter circuit A typical symptom would be the correct key being fully inserted into the cylinder, but the cylinder not turn Related Components to Check Ignition key Search all Motorcraft® ignition cylinder assemblies, product numbers and descriptions in the Full-Line Catalog.