Product Description
Ensure proper high-pressure oil system integrity for your Ford 6.0L Powerstroke with the MAHLE GS33998 kit. Designed for 2003-2007 6.0L Ford Super Duty/Excursion vans/trucks, this direct-fit seal/O-ring kit refreshes the standpipe, front port plug and rail plug seals—avoiding costly no-start and HPOP leakage issues. Built to OE-equivalent standards for a reliable, trusted overhaul.
Fitment
- 2003–2007 Ford F-250/F-350/F-450/F-550 Super Duty – 6.0L Powerstroke
- 2003–2007 Ford Excursion – 6.0L Powerstroke
- Also fits E-Series vans (E-350/E-450) and International trucks using 6.0L Powerstroke with similar standpipe/rail design.
Cross-Reference / Related Mahle Items (on CPP Diesel only)
- MAHLE GS33998 Stand Pipe & Seal Plug Kit
- MAHLE GS33690 EGR Installation Kit (for later 6.7L Powerstroke)
- MAHLE GS33895 18 mm Cylinder Head Dowel Pins (for 6.0L Powerstroke)
Notes
This kit services one bank (one side) of your high pressure oil (HPOP) standpipe/rail system. If you are resealing both banks, you will need two kits. Contents include multiple D-rings (14 mm, 17 mm, 19 mm) and all major O-rings for CCV tube, ICP sensor, HPOP discharge tube, rail plug and standpipe.
FAQ
Will this kit include the metal standpipes and dummy plugs?
No — this is a seal and O-ring kit only (for one bank). If your standpipes or dummy plugs are worn or broken you’ll need the full standpipe/plug assemblies.
How many kits do I need to reseal both sides of the 6.0L engine?
You need two kits to cover both banks (driver and passenger) on the 6.0L. Each GS33998 services one side.
Will this fix hard-hot-start or ICP leak symptoms?
If the root cause is failed standpipe O-rings or front port plug seals, yes—this kit addresses those leak paths. Always perform ICP/low leak-down testing first.
Specifications for Mahle GS33998
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | GS33998 |
| Application | Ford 6.0L Powerstroke 2003-2007 (one bank) |
| UPC | 639789302380 |
| GTIN | 00639789302380 |
| Shipping Info | Ships ground; calculated at checkout (based on CPP Diesel policy) |
| 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 |
