InMotion WS370182A Wheel Seal - Front Inner

InMotion Differential Pinion Seal

The InMotion WS370182A is a nitrile differential pinion seal built to create a tight barrier at the pinion shaft. It helps keep moisture, road debris, and gear oil where they belong, supporting cleaner operation inside the differential.

Use this seal when servicing a differential pinion area that needs a precise sealing surface and dependable leak control. The 5.91 outside diameter, 4.375 shaft diameter, and 5.905 housing bore dimensions are specified for accurate fitment in the sealing bore.

Key Features

• Nitrile construction for sealing performance in driveline service
• Outside diameter: 5.91
• Shaft diameter: 4.375
• Housing bore: 5.905
• Width: 1
• Designed to maintain a secure seal against contaminants and fluid loss
• Part number WS370182A for ordering and service reference

Detailed Description

InMotion WS370182A is a differential pinion seal engineered for the driveline and axle sealing system. Its nitrile material is selected for sealing durability, while the listed dimensions help match the seal to the pinion shaft and housing bore during differential service. For technicians and owners working on axle maintenance, this seal supports a clean sealing interface that helps protect internal differential components from debris and moisture.

This part is relevant for service work on vehicles such as Honda Civic and Toyota Corolla when the application calls for a differential pinion seal with these dimensions. The WS370182A part number should be verified against the original seal specification before installation.

What It Helps Address

• Gear oil seepage at the differential pinion area
• Contamination entering the differential through a worn seal
• Seal wear from age, heat, and driveline use
• Loss of sealing integrity during differential service
• Noise or driveline concerns caused by low lubricant level from leaks

Installation Notes and Tips

Inspect the pinion shaft, housing bore, and sealing surface before installation. Clean the bore thoroughly and confirm the seal dimensions match the service specification for WS370182A. Proper seating depth and alignment are important for a reliable seal, and the pinion area should be checked for wear that could affect sealing performance.

Compatible With Honda Civic and Toyota Corolla applications that call for this differential pinion seal specification. Fits should be confirmed by part number and measured dimensions before service.

Quality Assurance

InMotion manufactures this seal with a focus on dimensional accuracy and material consistency for driveline sealing service. The WS370182A is built to provide a secure sealing barrier for differential pinion applications.