Keep differential gear oil sealed inside the axle and road grime out with the SKF Differential Pinion Seal 18444. It installs as a direct-fit replacement for the front or rear differential pinion position across a long list of American Motors, VAM, Jeep, and AM General vehicles — including the 1958-1974 American Motors Ambassador, 1970-1978 American Motors Gremlin, 1968-1974 American Motors Javelin, 1980-1988 American Motors Eagle, 1994-2001 Jeep Cherokee, 1994-1998 Jeep Grand Cherokee, and 1992-2001 AM General Hummer. See the Buyer's Guide tab for the full list of 45 applications.
This seal fits around the pinion where the shaft enters the differential housing. Its body stays stationary while the sealing lip rides against the rotating pinion yoke, keeping gear oil contained.
- Seals the pinion: retains differential gear oil at the pinion shaft and helps keep dirt and moisture out of the housing.
- Cataloged position: listed for both the front and rear differential pinion location on the applications above.
- Signs it may need replacing: gear-oil seepage or drips at the pinion, a wet, oil-coated pinion yoke, or gear oil pooling below the axle. If a leaking pinion seal is the cause, this replaces it.
Interchange: 2453143 · 5012813AA · 70611764 · 975918444 · CHR 18444 · CHR18444 · 83504946 · AH17911 · AH17911H · AQX80553 · 319W174-27 · 319W17427 · 145818444 · 50331NA · 3183981 · 43085 · 48766
Manufacturer part number 18444.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the SKF 18444 pinion seal do?
It seals the differential pinion where the shaft enters the housing, retaining gear oil while its lip rides against the rotating pinion yoke and helps block dirt and moisture.
Does this fit a front or rear differential?
The catalog lists it for both the front and rear differential pinion position on the applications shown in the Buyer's Guide tab.
Which vehicles does it fit?
It covers 45 applications, including the American Motors Ambassador, Gremlin, Javelin and Eagle, Jeep Cherokee and Grand Cherokee, and AM General Hummer. See the Buyer's Guide tab for the complete list.
How do I know the pinion seal is leaking?
Look for gear-oil seepage or drips at the pinion, a wet, oil-coated pinion yoke, or oil pooling under the axle. Diagnose the source first, since other seals can also leak.
What numbers does this seal interchange with?
It cross-references 2453143, 5012813AA, 70611764, 975918444, AH17911, AH17911H, 50331NA, 3183981, 43085, 48766 and more; the full interchange list is in the description.
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