Air Flow Meter for Ford Explorer 1999 - 2008 4.0 UN UP UQ US AFM-076. Replaces Part #s 1L2F-12B579-BA AFM-076. Ford Explorer 1999 - 2008 4.0 UN UP UQ US. Our MAF / AFM Sensors are premium quality OE standard replacement parts. We keep a huge range to cover most Australian and New Zealand vehicles.Our sensors are made to suit the specific vehicle they are listed for to the manufactures specs. Many of our listings also have the option of a premium express service.