InMotion WS6638S Wheel Seal - Front Inner

Overview

InMotion WS6638S is a differential pinion seal built to create a tight barrier against moisture, dirt, and other contaminants. It is made from nitrile and sized for a precise fit, helping reduce fluid leakage and protect internal differential components.

• Nitrile construction for sealing performance in driveline applications.
• Precision dimensions: 3.5 inside diameter, 4.8479999999999999 outside diameter, and 0.875 width.
• Helps keep contaminants out of the differential pinion area.
• Supports leak control to protect sensitive internal components.

Product Details

This wheel seal is engineered for the differential pinion area, where a secure seal is critical to maintaining lubrication and limiting contamination. The WS6638S uses nitrile material and exact sizing to help maintain contact at the shaft and housing bore, making it a practical replacement for driveline sealing service. InMotion WS6638S is a focused sealing component for differential maintenance, and the WS6638S part number is useful when matching the correct seal specification.

Common Issues Addressed

• Gear oil seepage around the differential pinion seal.
• Contamination entering the differential housing.
• Wear-related sealing loss at the shaft interface.
• Moisture intrusion that can affect internal differential parts.

Installation Notes

Verify shaft diameter and housing bore before installation to confirm the seal dimensions match the application. Clean the sealing surfaces thoroughly and inspect the pinion area for wear or damage that could affect sealing performance. Proper installation technique is important to maintain a secure seal and reduce the chance of repeat leakage.

Quality Assurance

Built with precision and high-quality materials for dependable sealing performance in differential service.