The Ford 3C3Z-9A543-AARM High Pressure Oil Pump (HPOP) for your 2003-2004 Ford 6.0L Powerstroke is a genuine Ford direct OE replacement for your Powerstroke engine. This pump fits the 2003 and early 2004 production models.
Genuine Ford Part
Application Notes: Fits 2003-2004 (Early '04 Production)
For use on engine serial# 6,000,000 to 6,155,636