FAG SS4981 Differential Seal - Rear

Overview of FAG SS4981 Differential Seal

The FAG SS4981 differential seal is engineered for reliable sealing performance in driveline systems. Designed specifically for select Lexus and Toyota models, this seal ensures effective protection against leaks and contamination.

• Seal Type: Rubber with spring and auxiliary lip for enhanced sealing
• Sealing Material: Durable polyacrylate compound
• Bore Diameter: 2.835 inches (72.009 mm)
• Seal Outside Diameter: 2.852 inches (72.441 mm)
• Seal Width: 1.85 inches (10.008 mm)

Technical Details and Specifications

The FAG SS4981 differential seal features a rubber construction combined with a spring and auxiliary lip design, providing a secure and flexible seal around the differential bore. The polyacrylate sealing material offers resistance to heat and automotive fluids, maintaining integrity under demanding conditions. With precise dimensions including a bore diameter of approximately 2.835 inches and an outside diameter near 2.852 inches, this seal fits tightly to prevent fluid leakage. The 1.85-inch width ensures adequate surface contact for effective sealing in the differential assembly.

Compatible Vehicles and Applications

This differential seal is compatible with various Lexus and Toyota models, including the Lexus GS300, GS400, GS430, LS400, LS430, SC300, SC400, SC430, and the Toyota Supra. The part number SS4981 is specifically designed to meet the sealing requirements of these vehicles' driveline and axle systems.

• Prevents differential fluid leaks
• Protects against dirt and debris ingress
• Maintains proper lubrication within the differential
• Reduces wear on differential components
• Helps maintain driveline efficiency and performance

Installation Notes and Tips

When installing the FAG SS4981 differential seal, ensure the differential housing bore is clean and free of debris. Use appropriate tools to avoid damaging the rubber seal or auxiliary lip during installation. Verify the seal orientation matches the original part to maintain proper sealing function. Lubricate the seal lip lightly with differential fluid before installation to reduce initial wear and facilitate seating.

Quality Assurance and Warranty

FAG manufactures the SS4981 differential seal to meet stringent automotive standards, ensuring durability and consistent performance. The use of polyacrylate sealing material and a spring-augmented rubber design supports long service life under typical operating conditions. Warranty coverage details should be confirmed with the parts distributor or manufacturer documentation.