Right Hand Passenger's Side Glow Plug Extension is a direct fit for the following:

2004-2005 Ford Excursion
2005-2010 Ford Econoline
2004-2007 Ford F-250 Super Duty
2004-2007 Ford F-350 Super Duty
2004-2007 Ford F-450 Super Duty
2004-2007 Ford F-550 Super Duty
2004 Ford E-250
2004 Ford E-350
2004 Ford E-450
*Fits 6.0L V8 Diesel Models ONLY*