Frequency: 315 MHz Tire pressure sensors may require programming or "re-learning" before they become activated or recognized by the vehicle upon installation. Please check your owner's manual for details on this process specific to your vehicle. Professional Installation is Highly Recommended. Interchange Part Number 6L2T-1A150-AA / 6L2T1A150AA / 6L2T 1A150 AA 6L2A-1A176-AF / 6L2A1A176AF 6F2Z-1A189-A / 6F2Z1A189A 6W17-1A150-AF / 6W171A150AF 6W1T-1A150-AF / 6W1T1A150AF Fitment: For : 2006-2011 For Crown Victoria 2007-2008 For 2006-2010 For Explorer 2007-2010 For Explorer Sport Trac 2007-2011 For 2006-2007 For 2007-2009 For Fusion 2007 For Focus 2007-2008 For Edge 2007 For E-Series Van 2005-2008 For Escape 2007-2009 For For : 2006 For 2007-2008 For Mark 2007-2008 For 2007-2009 For MKZ 2006-2011 For Town Car For : 2007-2009 For B2300 2007-2008 For B3000 2007-2009 For B4000 For Mercury: 2006-2011 For Mercury Grand Marquis 2005-2008 For Mercury Mariner 2006-2007 For Mercury 2006-2010 For Mercury Mountaineer 2007-2009 For Mercury Milan Colour:blue Material:ABS Package Contents: 4 x TPMS Tire Pressure Monitor Sensors Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.