FAG SS2398 Differential Pinion Seal - Rear

FAG SS2398 Differential Pinion Seal

FAG SS2398 is a differential pinion seal built for driveline sealing performance where the pinion shaft enters the axle housing. It uses a metal case, spring-loaded sealing edge, and auxiliary lip to help retain lubricant and block contamination in demanding axle service.

Key Features

• Part number: SS2398
• Seal type: metal case with spring and auxiliary lip
• Sealing material: polyacrylate
• Bore diameter: 2.062 in. / 52.375 mm
• Seal outside diameter: 2.066 in. / 52.476 mm
• Seal width: 1.375 in. / 34.925 mm
• Built for differential pinion sealing in driveline and axle applications

Detailed Description

This FAG differential pinion seal is engineered to maintain a tight seal at the pinion input area, where gear oil retention and contamination control are critical. The polyacrylate sealing material is paired with a metal shell, spring tension, and auxiliary lip to support consistent sealing at the axle housing interface. For buyers searching for a differential pinion seal for Honda Civic, Toyota Corolla, or Ford F-150 driveline service, SS2398 provides the dimensional details needed to match the application correctly. The part number SS2398 is also referenced in interchange listings for 4132398100, Stant 13588, and Timken 470403.

What It Helps Address

• Gear oil seepage at the differential pinion area
• Contamination from dirt, dust, and moisture entering the axle housing
• Seal wear that can lead to lubricant loss over time
• Noise or driveline concerns associated with low differential fluid
• Service replacement needs for axle and driveline sealing repairs

Installation Notes and Tips

Verify bore diameter, outside diameter, and seal width before installation. Clean the housing bore and pinion surface thoroughly, and inspect the mating surface for wear or scoring that could affect sealing. Confirm the seal orientation before pressing it into place, and follow the vehicle service procedure for pinion preload and torque specifications. For fitment-based searches, confirm the exact application on the vehicle before ordering SS2398.

Quality Assurance

FAG designs seals to meet vehicle manufacturer specifications and works with suppliers to align production with FAG quality standards. This seal is intended for demanding wheel-end and driveline sealing environments where material selection and dimensional accuracy matter.