FAG SS3941 Wheel Seal - Rear Inner or Rear Outer

FAG SS3941 Wheel Seal for Rear Axle Service

The FAG SS3941 wheel seal is built for rear wheel-end sealing where contamination control and grease retention matter. It is engineered to meet vehicle manufacturer specifications and is sized for specific Lexus and Toyota rear inner and rear outer applications.

Key Features

• Wheel seal for driveline and axle sealing applications
• Seal type: metal, spring, auxiliary lip
• Sealing material: polyacrylate
• Bore diameter: 3.543 in. / 89.992 mm
• Seal outside diameter: 3.547 in. / 90.094 mm
• Seal width: 2.48 in. / 7.01 mm
• Designed to help keep dirt, dust, and moisture out of the wheel end
• Helps retain grease over the life of the bearing

Detailed Description

FAG SS3941 is a precision wheel seal for rear axle service on select Lexus LS400, SC300, SC400, and GS300 models, as well as Toyota Supra and Toyota Cressida applications. It is specified for rear inner and rear outer positions depending on vehicle fitment, making it a direct-match service part for wheel-end maintenance. This part cross-references Gates 24877 for the same application.

Built with a metal shell, spring tension, and auxiliary lip design, this seal is intended to maintain a stable sealing interface under demanding wheel-end conditions. The polyacrylate sealing material supports resistance to heat and wear in the bearing area, while the dimensional specifications help ensure proper fit in the hub and axle assembly. The FAG SS3941 part number is also referenced in OE-style service listings under global number 413 3941 100.

What It Helps Address

• Grease loss at the wheel bearing seal area
• Contamination from dirt, dust, and road moisture
• Noise or roughness caused by compromised wheel-end lubrication
• Seal leakage during rear axle or hub service
• Fitment issues when replacing worn rear inner or rear outer seals

Installation Notes and Tips

Verify the seal position before ordering, since this part is used in both rear inner and rear outer locations across different vehicles. Confirm bore diameter, outside diameter, and width against the original seal and hub dimensions before installation. Inspect the bearing, spindle, and sealing surface for wear or scoring, and replace damaged components as needed to maintain proper sealing performance.

Quality Assurance

FAG designs wheel seals to meet vehicle manufacturer specifications and works with suppliers to maintain quality standards for wheel-end sealing applications. The SS3941 is engineered for the demands of rear axle service on Lexus LS400, SC300, SC400, GS300, Toyota Supra, and Toyota Cressida models.