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InMotion WKSBK4 Axle Spindle Bearing - Front Inner
Axle Spindle Bearing for Ford Front Inner Applications
The InMotion WKSBK4 axle spindle bearing is built for front inner service on select Ford, Mazda, and Bronco applications. It includes a seal and spacers, giving you the core components needed for a clean, direct-fit bearing replacement in driveline and axle service.
Key Features
- Axle spindle bearing for front inner position
- Includes seal for added protection at the bearing area
- Spacers included for proper assembly support
- Universal-style bearing construction for rotational stability
- Part number WKSBK4 for easy identification
Detailed Description
InMotion WKSBK4 is a front inner axle spindle bearing made for vehicles that use the specified axle setup, including Ford F-150, Ford F-250, Ford Bronco, Ford Explorer, Ford Ranger, and Mazda Navajo applications. It is listed for 1984-1998 Ford F-250, 1997 Ford F-250 HD, 1984-1992 Ford Bronco, 1984-1992 Ford F-150, 1991-1992 Ford Explorer with Spicer 35 axle, 1990-1992 Ford Ranger with Spicer 35 axle, and 1991-1992 Mazda Navajo with Spicer 35 axle. The bearing is engineered for smooth rotation, reduced friction, and stable operation in axle service, while the included seal and spacers support proper fitment during replacement. WKSBK4 is a practical choice when servicing front inner bearing wear on these driveline applications.
What It Helps Solve
- Front-end bearing noise from worn axle spindle components
- Excess friction in the front inner bearing area
- Loose or unstable wheel-end rotation
- Seal wear at the bearing assembly
- Service issues during Ford F-150, Ford F-250, or Bronco front axle repair
Installation Notes and Tips
Confirm axle type, position, and year before ordering. This part is listed for front inner use only, and some applications require Spicer 35 axle configuration. Inspect the spindle, hub, and mating surfaces before installation, and replace any damaged components that could affect bearing life. Part number WKSBK4 should be matched to the vehicle’s exact fitment data for proper service.
Quality Assurance
InMotion markets this bearing as a durable, multi-purpose component built from quality materials for consistent performance in automotive and industrial use. The included seal and spacers support a complete bearing service setup for the listed applications.
| Brand | InMotion |
| Part Number | WKSBK4 |
| Spacers Included | Yes |
| Seal Included | Yes |
| 9725 | 0 |
This part fits 40 vehicles. Search below:
| Year | Make | Model | Drive Type | Position | Notes |
|---|---|---|---|---|---|
| 1998 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1997 | Ford | F-250 HD | 4WD | Front Inner | Includes Seal |
| 1996 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1995 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1994 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1993 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1992 | Ford | Bronco | Front Inner | Includes Seal | |
| 1992 | Ford | Explorer | 4WD | Front Inner | with Spicer 35 Axle |
| 1992 | Ford | F-150 | 4WD | Front Inner | Includes Seal |
| 1992 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1992 | Ford | Ranger | 4WD | Front Inner | with Spicer 35 Axle |
| 1992 | Mazda | Navajo | 4WD | Front Inner | with Spicer 35 Axle |
| 1991 | Ford | Bronco | Front Inner | Includes Seal | |
| 1991 | Ford | Explorer | 4WD | Front Inner | with Spicer 35 Axle |
| 1991 | Ford | F-150 | 4WD | Front Inner | Includes Seal |
| 1991 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1991 | Ford | Ranger | 4WD | Front Inner | with Spicer 35 Axle |
| 1991 | Mazda | Navajo | 4WD | Front Inner | with Spicer 35 Axle |
| 1990 | Ford | Bronco | Front Inner | Includes Seal | |
| 1990 | Ford | F-150 | 4WD | Front Inner | Includes Seal |
| 1990 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1990 | Ford | Ranger | 4WD | Front Inner | with Spicer 35 Axle |
| 1989 | Ford | Bronco | Front Inner | Includes Seal | |
| 1989 | Ford | F-150 | 4WD | Front Inner | Includes Seal |
| 1989 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1988 | Ford | Bronco | Front Inner | Includes Seal | |
| 1988 | Ford | F-150 | 4WD | Front Inner | Includes Seal |
| 1988 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1987 | Ford | Bronco | Front Inner | Includes Seal | |
| 1987 | Ford | F-150 | 4WD | Front Inner | Includes Seal |
| 1987 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1986 | Ford | Bronco | Front Inner | Includes Seal | |
| 1986 | Ford | F-150 | 4WD | Front Inner | Includes Seal |
| 1986 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1985 | Ford | Bronco | Front Inner | Includes Seal | |
| 1985 | Ford | F-150 | 4WD | Front Inner | Includes Seal |
| 1985 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
| 1984 | Ford | Bronco | Front Inner | Includes Seal | |
| 1984 | Ford | F-150 | 4WD | Front Inner | Includes Seal |
| 1984 | Ford | F-250 | 4WD | Front Inner | Includes Seal |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.