Keep the differential pinion supported and turning smoothly with the SKF Differential Pinion Bearing HM88649, a tapered bearing cone built for smooth, quiet operation. It is a direct-fit replacement for many vehicles, including the 1999-2003 Chevrolet Silverado 1500 and 1988-1999 Chevrolet C1500. Applications span Chevrolet, GMC, Dodge, Jeep, Ford, Toyota and more. See the "Vehicles it fits" section for the full list and engine details.
In the differential, the pinion bearing supports the pinion shaft and carries both radial and thrust loads, helping hold the pinion gear in position to mesh with the ring gear. SKF backs this cone with its familiar quality and design:
- Logarithmic raceway profiles: The roller raceways use logarithmic profiles and an ultra-smooth surface finish, designed for smooth and quiet running.
- Heat-treated high-carbon steel: The bearing is made from heat-treated high-carbon steel for superior strength.
- Precision tolerances: It is manufactured to precision tolerances for an exact fit.
- SKF heritage: For more than 100 years, engineers, technicians and mechanics have turned to SKF for bearing solutions.
Catalog positions include front, rear, front inner, front outer, rear inner and rear outer, depending on the application. This listing is the bearing cone. Pinion bearing service typically involves setting preload and gear mesh, so follow the vehicle service information during installation.
Interchange: 1-101-918 · 90368-34049
1101918 · 9036834049 · 158334 · 400195 · XET96811 · 10033490 · 7451203 · AQX72412 · 62201C91 · 62211C91 · 871244R91 · 871246R91 · 517167 · 1549628
This part cross-references / interchanges with the following part numbers:
1-101-918, 158334, 400195, XET96811, 10033490, 7451203, AQX72412, 62201C91, 62211C91, 871244R91, 871246R91, 517167, 1549628, 90368-34049
Frequently Asked Questions
What does the SKF HM88649 differential pinion bearing do?
It is a tapered bearing cone that supports the pinion shaft in the differential. It carries both radial and thrust loads, helping keep the pinion gear positioned to mesh with the ring gear.
What is the HM88649 made from?
SKF states it is made from heat-treated high-carbon steel. It uses logarithmic roller raceway profiles with an ultra-smooth surface finish for smooth, quiet operation.
Does this include the bearing cup?
This listing is the HM88649 tapered bearing cone only. The cup (outer race) is not part of this listing, so order the matching cup your application requires if it also needs replacing.
What are signs a pinion bearing may need replacing?
Possible signs include a whine or growl from the differential that changes with throttle or speed, or play at the pinion flange. Other parts can cause similar noises, so diagnose the cause before replacing.
Will the HM88649 fit my vehicle?
It is cataloged for many vehicles, including the 1988-1999 Chevrolet C1500 and the 1999-2003 Chevrolet Silverado 1500. Positions vary by application, so see the "Vehicles it fits" section for years, models and engines.
