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Ford 7.3 Powerstroke & T444E 63803AD Injector

Part Number: APPAP63803AD UPC: AP63803AD
AP6380_A_ Injector Core :

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1999-2003 Ford 7.3 Powerstroke & Navistar T444E Alliant Power 63803AD Injector

1999-2003 Ford F-Series & E-Series Built After 12/07/1998.
1999-2003 International T444E Engine serial number 843,990-5,999,999.

OEM Part Number;

  • F81Z9E527CRM
  • 5C3Z9VE527BRM
  • 1823751C91
  • 1823751RX91
  • 1831487C92
  • 1831488C1
  • 1831489C12
  • 1831550C14
  • 1831551C13

New copper chamber gasket and seals included.

Alliant Power is the exclusive supplier of brand-new, genuine original equipment, HEUI® fuel injectors for 1994-2003 7.3L Ford Powerstroke and International T444E / DT466E / I530E vehicles.

HEUI is a registered trademark of Caterpillar Inc.




 Year & Application

Part Number 


 1999-2003 Ford F-Series & E-Series
                Built After 12/7/98               



 1999-2003 International T444E
                Engine S/N 843990-5999999

Note:  Recommend use of one AE 1999-2003, became standard production in 2002.  See footnote 6. 


5) Prime (Split Shot) Injector
6) Long Lead Injector (stamped ‘LL' or blue harness connector). Per Ford Bulletins 00-10-1, 00-22-1 and 01-14-6 (used in number 8 cylinder as fix as failed only, to eliminate "cackle"). Used as standard equipment, No. 8 cylinder in International T444E beginning MY 2002.

To avoid paying the core charges a matching core must be received prior to the exchange being sent out; otherwise we will charge you for the core and refund you the core price if an acceptable matching core is received within thirty days of purchase.  Call if you have any questions.  We are happy to help!  800-776-7102  

See the wide variety of 1997-1999 Ford 7.3 Powerstroke diesel performance, repair, and maintenance parts offered by Huckstorf Diesel both online here, and in person at Wisconsin’s premier diesel repair, performance, and installation center located just outside of Milwaukee Wisconsin in Franklin WI.
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