Product Description
MAHLE SS45897 valve stem seal kit restores proper oil control on 1994–2003 Ford 7.3L Powerstroke engines. These OE-quality, positive-type seals use fluoroelastomer material for heat and oil resistance and the correct top-hat profile.
- Material: Fluoroelastomer (high temp & oil resistant)
- Type: Positive, top-hat style
- Quantity: Contains 8 seals (services one cylinder head) — order 2 kits to service both heads
- Stem/Guide Size: For 0.3125" stem, 0.562"/0.572" nominal guide O.D.
- GTIN/UPC: 027067929945
Fitment
- 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Ford 7.3L Powerstroke (F-250/F-350/F-450/F-550; many E-Series vans)—verify by VIN (VIN code F)
Cross Reference Numbers
- Ford/Motorcraft: F4TZ-6571-A
- Navistar/International: 1816179C91, 1820782C91
- Fel-Pro: SS72893
- Mahle/Clevite: SS45897 (set), may appear as B-series individual seal numbers in some catalogs
What’s Included
(8) valve stem oil seals for one head; reuse or replace spring seats and retainers as required.
FAQ
Does one kit cover the whole engine?
No—this set contains 8 seals for one cylinder head. The 7.3L has 16 valves; order two kits to service both heads.
Are these intake- and exhaust-specific?
They are positive-type seals designed to work on both intake and exhaust positions when used per OE spec.
What material are the seals?
Fluoroelastomer for OEM-grade temperature and oil resistance.
Will these fit my E-Series van with 7.3L?
Yes, many E-Series 7.3L applications use this seal. Always verify by VIN/application before purchase.
