2003-2004, 2006-2007 Ford F550 Super Duty 6.0L V8. 2005 Ford F550 Super Duty 6.0L V8. Notes:w/ Dual Alternators on Main Belt. Notes:Production: 01/06/2005-, w/ Dual Alternators on Main Belt. Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.