The EGR systems in the 6.0L Ford Power Stroke engines is problematic. A common failure is the EGR valve. These EGR valves get plugged up and stop working. This Alliant Power replacement is a great option. This part number fits the 2003 and early 2004 engines built before 9/22/2003.

Cross Reference Numbers;

1840778
1840778C
1840778C91
1840778C92
1840778C93
1840778C94
1840778C95
1840778C96
1840778C97
1840778C98
1840778C99
1846491
1846491C
1846491C91
1846491C92
1846491C93
1846491C94
1846491C95
1846491C96
1846491C97
1846491C98
1846491C99
3C3Z9P455
3C3Z9P455AB
4C3Z9F452
4C3Z9F452A
4C3Z9F452ARM
4C3Z-9F452-ARM
5010682
5010682R
5010682R91
5010682R92
5010682R93
5010682R94
5010682R95
5010682R96
5010682R97
5010682R98
5010682R99
63438
63438R
AP0005
AP63438
AP63438R
CX2056
CX2467RM
HTV105