2003-2004.5 6.0L Powerstroke High Pressure Oil Pump 
Early Aluminum Style

Part Numbers:

• 3C3Z9A543AARM
• 4C3Z9A543AARM
  
• Navistar 1838828C91

Engine Applications:

• 2003-2004.5 Ford Powerstroke 6.0L 
• 2003-2004 VT365
  
• From Ford engine serial numbers up to 6,344,942
  

Vehicle Applications:

• 2003 - 2004 F Series, Excursion
  
• 2002.5–2003 VT365 International 4100 – 230 HP
• 2002.5–2003 VT365 International 4200 – 175HP, 200HP, 215HP, 230HP
• 2002.5–2003 VT365 International 3200 Bus Chassis – 175HP, 200HP, 215HP
• 2002.5–2003 VT365 International 3300 Bus Chassis – 175HP