Keep gear lubricant inside the axle and road grime out with the SKF differential pinion seal, part number 19273. Cataloged for the rear position, it is a direct-fit replacement for the listed applications, including the 1970-1987 Chevrolet Monte Carlo, 1971-1985 Buick LeSabre, 1988-1999 Chevrolet C1500, 1988-1997 Chevrolet K1500 and 1994-1997 GMC Jimmy. It also fits many more Buick, Cadillac, Chevrolet, GMC, Oldsmobile and Pontiac models.
The pinion seal sits where the pinion shaft exits the differential housing. The seal body stays stationary while its lip contacts the rotating pinion yoke or flange. This helps keep lubricant in and dirt and water out.
SKF introduced the first integrated shaft seal in 1928 and has kept developing new seal designs and bonding techniques since then. Its seals are built to specific designs using premium materials chosen for both the application and its operating environment.
Signs this part may need replacing:
See the "Vehicles it fits" section for the full list of applications and engine details.
Interchange: CHR 19273
CHR19273 · 975919273 · 1236323 · 1236324 · 1242066 · 1243465 · 1243468 · 1496123 · 3633518 · 404294 · 404795 · 9784286 · 9784508 · 9787384 · 46476
This part cross-references / interchanges with the following part numbers:
What does this pinion seal do?
It seals the opening where the pinion shaft exits the differential housing. Its lip rides on the rotating yoke or flange to help keep gear lubricant in and dirt and water out.
What are signs a pinion seal may need replacing?
Common signs include lubricant seeping around the pinion yoke, oily residue on the housing or driveshaft, and a dropping fluid level. Diagnose the leak source before replacing parts.
Which vehicles does SKF 19273 fit?
It covers 252 listed Buick, Cadillac, Chevrolet, GMC, Oldsmobile and Pontiac applications, including the 1988-1999 Chevrolet C1500. See the "Vehicles it fits" section for the full list.
What is the seal case made of?
The body is deep drawn sheet steel, which forms a rigid, stress-resistant case. The garter spring is made from cold drawn steel wire.
Does it replace other part numbers?
Yes. It interchanges with numbers including 1236323, 1242066, 3633518 and 9784286. The full interchange list appears in the description.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
