Product Description
MAHLE GS33879 is an OE-quality high-pressure oil pump (HPOP) O-ring seal kit for the 2003–2004 Ford 6.0L Powerstroke. Built to OE form, fit, and function, these molded-rubber seals restore a reliable seal under high temperature and demanding operating conditions.
- Item Grade: OEM Standard
- O-Ring Material: Molded Rubber
- Package Quantity: 3 (inlet & discharge tube O-rings)
- Direct replacement for Ford 3C3Z-9G804-AA
Fitment
- 2003–2004 Ford Super Duty (F-250/F-350/F-450/F-550) with 6.0L Powerstroke Diesel
Cross Reference Numbers
- Ford: 3C3Z-9G804-AA, 3C3Z9G804AA
- MAHLE: GS33879
What’s Included
- (3) High-pressure oil pump related O-rings: HPOP inlet O-ring and discharge tube O-rings
Features
- OE fit & function for proper HPOP sealing
- Engineered to withstand extended high-temperature exposure
- Ensures leak-free operation when servicing HPOP connections
FAQ
Will this fit my truck?
Yes—this kit fits 2003–2004 Ford 6.0L Powerstroke applications.
What Ford part number does it replace?
It replaces Ford 3C3Z-9G804-AA (also listed as 3C3Z9G804AA).
How many O-rings are in the kit?
Three total—covering the HPOP inlet and discharge tube connections.
Do I need any special tools?
Basic hand tools work for most installs. Always clean sealing surfaces and lubricate O-rings with clean engine oil during assembly.
