Motorcraft ZD-13 Glow Plugs

These glow plugs are designated for the 2004.5-2007 but we highly recommend these plugs in all years 2003-2007.  They are slightly smaller.  We recommend them because functionality is the same.  If you put the longer ZD 12 is the wrong engine then you can cause engine damage.  Full Force Diesel doesn't not sell the ZD12 glow plug for that reason.