Help keep lubricant inside the rear differential and road grime out with the Schaeffler Differential Pinion Seal / Shaft Seal SS2954. It is a direct-fit replacement for many vehicles, among them the 1965-1969 Cadillac Calais, 1957-1969 Cadillac Commercial Chassis, and 1957-1969 Cadillac DeVille. See the "Vehicles it fits" section for the full list and engine details. Schaeffler catalogs this part as a shaft seal, and it serves as the rear differential pinion seal, so it is listed under both names.
The pinion seal sits at the pinion input of the rear differential. Its body stays stationary while its sealing lip contacts the rotating pinion yoke. This helps hold lubricant in the housing and keep outside contaminants away from the internal components.
- Quality materials: Engineered with high-quality materials chosen to meet vehicle manufacturer specifications.
- OE expertise: Designed and built to stringent OEM standards for assured quality.
- Quality assurance: Backed by a robust QA process that accounts for the precise requirements of automotive systems.
- Contamination protection: Designed to block dirt, dust, and moisture from reaching the components it guards.
Signs this seal may need replacing include lubricant seeping around the pinion yoke, an oily film on the differential housing, or drips beneath the rear axle. Diagnose the source of any leak before replacing parts, and follow the vehicle service information for installation.
Interchange: 451078 · 18922 · 4132954100
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
451078, 18922, 4132954100
Frequently Asked Questions
What does the Schaeffler SS2954 differential pinion seal do?
It seals the pinion opening of the rear differential. It helps keep lubricant in the housing and dirt, dust, and moisture out while its lip contacts the rotating pinion yoke.
Which vehicles does SS2954 fit?
It fits many vehicles, among them the 1965-1969 Cadillac Calais, 1957-1969 Cadillac Commercial Chassis and 1957-1969 Cadillac DeVille. See the "Vehicles it fits" section for the full list.
What part numbers does SS2954 interchange with?
It cross-references to 451078, 18922, and 4132954100.
What are signs a pinion seal may need replacing?
Common signs include lubricant seeping around the pinion yoke, an oily film on the differential housing, or drips under the rear axle. Confirm the source of the leak before replacing the seal.
Why is this part also called a shaft seal?
Schaeffler catalogs SS2954 as a shaft seal. On these vehicles it serves as the rear differential pinion seal, so it is known by both names.
