1X Mass Air Flow Sensor. 2004-2009 Ford Crown Victoria 4.6L engines. 2004-2009 Ford E-150, E-250 & E-350 4.6L & 5.4L engines. 2004-2009 Ford E-250, E-350, & E-450 Super Duty 5.4L engines. 2005-2009 Ford E-250, E-350, & E-450 Super Duty 6.0L Diesel & 6.8L engines.
