Ignition coils produce the high voltage necessary to ignite the air/fuel mixture in the combustion chamberWhen not replaced、 vehicle could experience no or hard start、 long crank time、 misfire、 and catalytic converter failureOur ignition coils are light and easy to install with the highest quality copper. The unique winding design would reduce the size and weight without sacrificing the quality.Each coil is design for specific application、 low-emissions、 and high energy output. They will eliminate misfires and provide maximum voltage.Other Compatible Part Numbers: DG513、 5C1449、 AJ0318100、 8M2E-12A366-AA、 C1458、 5C1449、 E261、 E264、 52-1787、 IC386、 1L82-12029-AB、 1L8E-12A366-AC、 1L8U-12A366-AA、 1L8Z-12029-AA、 1L8Z-12029-AB、 XS2Z-12029-AA、 AJ03-18-100、 AJ09-18-100、 FD-495、 FD-502These coil will only fit the following vehicle and engines: Ford Escape 2001-2008 - All Sub Models - 3.0L V6 Engines Ford 500 2005-2007 - All Sub Models - 3.0L V6 Engines Ford Freestyle 2005-2007 - All Sub Models - 3.0L V6 Engines Ford Taurus 2001-2004 - All Sub Models - 3.0L V6 Engines - 24 valve engines only Mazda Tribute 2001-2009- All Sub Models - 3.0L V6 Engines Mercury Mariner 2005-2008 - All Sub Models - 3.0L V6 Engines Mercury Montego 2005-2007 - All Sub Models - 3.0L V6 Engines Mercury Sable 2000-2004 - All Sub Models - 3.0L V6 Engines - 24 valve engines only