Great Alternative to your Original Included- 2 pack complete key fob with electronics and a battery Replaces P/N- 164-R8073, 164-R8087, 164-R8021, 164-R8020, 164-R8096 FCC ID- CWTWB1U793 / OUC6000022 Frequency- 315 MHz Function- Lock/Unlock/Trunk/Panic alarm Remote Programming- Self-programmable with 1 working key Key Programming- Self-programmable with two 2 working ORIGINAL master keys User Guide PLEASE CAREFULLY READ BEFORE ORDER 1. The key will NOT work if vehicle ignition currently has an ignition guard 2. The key will NOT work if different type of Remote Keyless Entry system installed on your vehicle 3. Key fob program requires two working keys. If you only get one key, you should have the key programmed at the local locksmith 4. Only works for original key marked 'SA'. If your original key is marked 'HA', the key WON'T work Compatible with(Following models of vehicle can be self-programmable with 2 working keys) 2006-2009 Ford Crown Victoria 2007-2015 Ford Edge 2006-2012 Ford Escape 2003-2016 Ford Expedition 2001-2015 Ford Explorer 2001-2010 Ford Explorer Sport Trac 2005-2007 Ford Five Hundred 2009-2015 Ford Flex 2006-2012 Ford Focus 2006-2012 Ford Fusion 2005-2014 Ford Mustang 2000-2016 Ford Taurus 2004-2005 Ford Thunderbird 2004-2005 Lincoln Aviator 2004-2006 Lincoln LS 2009-2013 Lincoln MKS 2006-2013 Lincoln MKX 2007-2012 Lincoln MKZ 2003-2015 Lincoln Navigator 2005-2011 Lincoln Town Car 2006-2009 Lincoln Zephyr 2007-2011 Mazda Tribute 2006-2011 Mercury Grand Marquis 2005-2011 Mercury Mariner 2006-2011 Mercury Milan 2005-2007 Mercury Montego 2000-2009 Mercury Sable.