Fuel Filter Return Tube is a direct fit for the following:

2003-2007 Ford F-250 Super Duty
2003-2007 Ford F-350 Super Duty
2003-2007 Ford F-450 Super Duty
2003-2007 Ford F-550 Super Duty
2003-2005 Ford Excursion
2004-2010 Ford E-150
2004-2010 Ford E-250
2004-2010 Ford E-350
2004-2010 Ford E-450

6.0L Powerstroke Diesel Engines Only