Keep your differential's gear oil sealed in and road grime out with the SKF Differential Pinion Seal 19277. It installs at the differential pinion — where the driveshaft yoke meets the housing — with the seal body staying stationary while its lip rides against the rotating pinion shaft. It drops in as a direct-fit replacement for a wide range of GM and Isuzu applications, including the 1977-1986 Chevrolet K10, 1988-1998 Chevrolet C2500, 1982-1986 Chevrolet C20, 1976-1985 Buick LeSabre, 1987-1992 Cadillac Brougham and 1996-1998 Isuzu Hombre — see the Buyer's Guide tab for the full list of 81 applications.
- Seals the pinion: fits where the yoke enters the differential, retaining gear lubricant and keeping dirt and moisture out.
- Correct seal action: the body seats stationary in the housing while the sealing lip contacts the rotating pinion shaft.
- Broad coverage: cataloged for front and rear differential positions (including rear inner and outer) — confirm the correct position for your vehicle in the Buyer's Guide.
Signs this seal may need replacing include gear oil seepage or drips around the pinion yoke, a wet or oily pinion flange, and a dropping differential fluid level. If a leaking pinion seal is the cause, replacing it addresses the leak.
Interchange: 71-19277 · 7119277 · 683-6825 · 6836825 · 975919277 · CHR 19277 · CHR19277 · 14047287 · 458858 · 458859 · 5622 · 8622 · 145819277 · 47624
Manufacturer part number 19277.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the SKF 19277 do?
It seals the differential pinion where the driveshaft yoke enters the housing, keeping gear oil in and contaminants out. The stationary body holds a lip that rides on the rotating pinion shaft.
What vehicles does it fit?
It's a direct-fit replacement for 81 GM and Isuzu applications, including the 1977-1986 Chevrolet K10, 1988-1998 Chevrolet C2500 and 1996-1998 Isuzu Hombre. See the Buyer's Guide tab for the full list.
Is this a front or rear differential seal?
The catalog lists both front and rear differential positions (including rear inner and outer) depending on the application, so confirm the correct position for your vehicle in the Buyer's Guide.
What are the signs of a bad pinion seal?
Gear oil seepage or drips around the pinion yoke, a wet or oily pinion flange, and a dropping differential fluid level. If a leaking pinion seal is the cause, replacing it addresses the leak.
What numbers does it interchange with?
It replaces 71-19277, 683-6825, 975919277, CHR 19277, 14047287, 458858, 458859, 5622, 8622, 145819277 and 47624. Its own manufacturer part number is 19277.
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