This ignition lock housing acts as the protective casing for the ignition lock cylinder. It protects the ignition mechanism from any damages and most importantly, helps the owner from someone attempting to tamper or start the vehicle without having the key. This is applicable to your Focus, Escape, Tribute and Mariner. Over time, the ignition lock housing will be worn out due to the usage of the whole ignition mechanism hundreds of times preventing you from unlocking the ignition and starting your vehicle. It is located beside the steering wheel of your vehicle where you insert your key. It can be accessed by taking the steering wheel column housing and the steering wheel as well. Compatible with the following: 2009-2011 Focus (Automatic Transmission) 2008-2010 Escape 2008-2011 Tribute 2008-2010 Mariner Replacement part number: 8L8Z3511B, 8L8Z3511C, 8L8Z3511D, 8L8Z3511E, 9L8Z-3511-A, ZZCB66160, ZZCB66160A, ZZCB66160B, ZZCB66160C, ZZCB66160D, ZZDB66160, 989-019 This is a compatible replacement part manufactured by AA Ignition. This ignition lock housing is NOT a genuine OEM part. Vehicle makes and their associated vehicle models and part numbers are used in this listing only to identify the vehicles this ignition lock housing fits.