Product Description
Stop high-pressure oil leaks at the STC fitting with the MAHLE GS33611 HPOP O-ring seal kit for the 2003–2007 Ford 6.0L Powerstroke. Built to OE form, fit, and function, this kit restores a reliable seal at the HPOP Snap-To-Connect (STC) fitting to stabilize injection control pressure and improve starts, drivability, and durability.
Fitment
- 2003–2007 Ford F-250 / F-350 / F-450 / F-550 Super Duty – 6.0L Powerstroke
- 2003–2005 Ford Excursion – 6.0L Powerstroke
Cross-Reference / Related Mahle Items (CPP Diesel only)
- MAHLE GS33879 – HPOP O-Ring Kit (2003–2004)
- MAHLE GS33998 – Stand Pipe & Seal Plug Kit (one bank)
- MAHLE D32786 – Fuel Pressure Regulator O-Ring
- MAHLE B32554 – Oil Cooler Screen (HPOP inlet)
Notes
Inspect and clean sealing surfaces. Lubricate O-rings with clean engine oil during assembly. Verify overall high-pressure oil system health (HPOP, IPR, standpipes/dummy plugs) during diagnosis.
FAQ
WILL THIS FIT MY 6.0L POWERSTROKE?
Yes—GS33611 is listed for 2003–2007 6.0L applications that use the STC-style HPOP fitting.
IS THIS AN OE-EQUIVALENT SEAL KIT?
Yes—MAHLE designs to OE form, fit, and function for dependable sealing under heat and pressure.
WILL THIS FIX HARD-START/NO-START ISSUES?
It addresses leaks at the STC fitting that can cause ICP loss. Always confirm HPOP/rail/standpipe integrity.
Specifications for Mahle GS33611
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | GS33611 |
| Application | HPOP STC fitting O-ring seal kit (6.0L Powerstroke) |
| UPC | 27067866080 |
| GTIN | 027067866080 |
| 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 |
