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InMotion WS370018A Wheel Seal - Rear Inner
Rear Inner Wheel Seal for Ford Super Duty
InMotion WS370018A is a rear inner wheel seal for Ford F-350 Super Duty applications with an 11.5 ring gear. It is built to form a tight barrier that helps keep moisture and road debris out of the differential pinion area while helping retain lubricant where it belongs.
Use this seal when servicing a Ford F-350 Super Duty rear axle and you need a precise replacement for the rear inner position. The WS370018A is made for 1999-2019 Ford F-350 Super Duty trucks with the 11.5 ring gear configuration.
Key Features
- Rear inner wheel seal for driveline and axle service
- Fits 1999-2019 Ford F-350 Super Duty, rear inner
- For vehicles with 11.5 ring gear
- Helps block contaminants from entering sensitive internal components
- Supports leak control in the differential pinion area
- InMotion part number WS370018A
Detailed Description
WS370018A is engineered from quality materials to deliver a secure seal at the rear inner position. By helping maintain a clean sealing surface, it reduces the chance of fluid loss and contamination that can affect differential performance over time. This makes it a practical choice for Ford F-350 Super Duty rear axle maintenance, especially when replacing a worn or leaking seal during driveline repair.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
What It Helps Fix
- Rear axle fluid seepage at the inner seal area
- Contamination from dirt, debris, and moisture
- Wear-related sealing loss in the differential pinion area
- Service issues on Ford F-350 Super Duty rear axle repairs
- Noise or damage risk tied to low or contaminated lubricant
Installation Notes and Tips
Confirm axle configuration before ordering. This seal is listed for the rear inner position on 1999-2019 Ford F-350 Super Duty models with an 11.5 ring gear. Inspect the sealing surface, axle components, and lubricant condition during installation, and replace any worn mating parts as needed.
Quality Assurance
InMotion manufactures this seal with precision-focused construction and high-quality materials for dependable sealing performance in driveline service.
This part fits 21 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2019 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2018 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2017 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2016 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2015 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2014 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2013 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2012 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2011 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2010 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2009 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2008 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2007 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2006 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2005 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2004 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2003 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2002 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2001 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 2000 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
| 1999 | Ford | F-350 Super Duty | Rear Inner | with 11.5 Ring Gear |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.