Engine Coolant Thermostat Housing & Gasket Seal 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-350 Super Duty
2004-2010 Ford E-450 Super Duty

-With 6.0L Diesel Powerstroke Engines