Diamond Advantage 7.3L Powerstroke

1994.5-1995
F-Series Engine Serial Number 501 to 187,099
E-Series Engine Serial Number 35,651 to 187,099

1996-1997
F-Series Engine Serial Number 187,100 to 661,495
E-Series Engine Serial Number 187,100 to 201,679

1998 E-Series
Engine Serial Number 201,680 to 896,811

Early 1999
Build Date Before 12/07/1998
F-Series Engine Serial Number 661,496 to 896,812
E-Series Engine Serial Number 201,680 to 896,811

1999.5-2003
Build Date After 12/07/1998
F-Series/Excursion Engine Serial Number 896,813 to 2,030,402
F-650/F-750 Engine Serial Number 1,026,248 & Up
E-Series Engine Serial Number 896,812 & Up