Part record

Spark Plugs, 2V heads (Motorcraft SP-479 / Ford AGSF-22W-MX)

All 2-valve 5.4L/4.6L V8 and 6.8L V10 (Super Duty 2003-2004, Excursion 2003-2005, E-Series 2004-2010 incl. E-250, F-150 4.6L 2V 2004-2008). Current Ford service PN AGSF-22W-MX, which the catalog lists as superseding AGSF-22W-M/-F4, AWSF-22-E/W and Motorcraft SP-479; catalog description '6.8L. 5.4l sohc.' The 2V plug is the subject of the ejection / stripped-thread problem (fm-std-spark-plug-ejection-2v) and Ford's own thread-repair procedure bulletin (TSB 07212): install with the factory-specified torque only, never over-torque, and replace on the service interval rather than running plugs to failure. Catalog year rows for this PN run family-loose across later V10 model years - the 2V identity is what matters. Pass-2 note: the catalog year rows for AGSF-22W-MX do not list the new-body 4.6L F-150 (provider rows are family-loose); the SP-479 cross covering 4.6L 2V is vendor-consistent and TSB 07-2-12 explicitly names the 4.6L 2V - confirm the plug box against the old plugs.