Product Description
Stop hot-oil leaks at the source with the MAHLE GS33879 high-pressure oil pump (HPOP) O-ring seal kit for 2003–2004 Ford 6.0L Powerstroke. These OE-style molded-rubber seals restore proper high-pressure oil system sealing at the HPOP inlet and discharge tube connections for reliable starts, strong ICP, and cleaner engine bays.
Fitment
- 2003–2004 Ford Super Duty F-250/F-350/F-450/F-550 – 6.0L Powerstroke diesel
Cross-Reference / Related (Mahle on CPP Diesel only)
- MAHLE GS33611 HPOP STC O-RING SEAL KIT (03–07 6.0L)
- MAHLE D32786 FUEL PRESSURE REGULATOR O-RING (03–07 6.0L)
- MAHLE HS54450 CYLINDER HEAD GASKET SET – 18 mm (03–06 6.0L)
- MAHLE HS54579 CYLINDER HEAD GASKET SET – 20 mm (06.5–07 6.0L)
Notes
Lubricate O-rings with clean engine oil before install. Clean and inspect tube ends and pump ports; replace damaged tubes. Direct replacement for Ford 3C3Z-9G804-AA.
FAQ
Will this fit my 2003–2004 6.0L?
Yes. GS33879 is specified for 2003–2004 6.0L Powerstroke applications using the early HPOP connections.
What’s included?
Three molded-rubber O-rings: HPOP inlet and discharge tube seals.
Do I need special tools?
No specialty tools required. Ensure clean sealing surfaces and correct routing/alignment when reconnecting tubes.
Specifications for Mahle GS33879
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | GS33879 |
| Application | 2003–2004 Ford 6.0L Powerstroke – HPOP inlet & discharge tube seals |
| Replaces (OE) | Ford 3C3Z-9G804-AA |
| UPC | 639789276018 |
| GTIN | 00639789276018 |
| Shipping | Calculated at checkout; optional shipping insurance available |
| Prop 65 | This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Learn more |
