FAG SS4438 Differential Seal - Rear

Overview of FAG SS4438 Differential Seal

The FAG SS4438 differential seal is engineered for reliable sealing performance in driveline systems. Designed to fit select Lexus, Subaru, and Toyota models, this seal ensures effective protection against leaks and contamination.

• Seal Type: Metal with spring and auxiliary lip for enhanced sealing
• Sealing Material: Durable nitrile compound
• Bore Diameter: Approximately 70.002 mm (2.756 inches)
• Seal Outside Diameter: Approximately 70.129 mm (2.761 inches)
• Seal Width: 8.992 mm (1.693 inches)

Technical Details and Specifications

The FAG SS4438 differential seal features a metal construction combined with a spring and auxiliary lip design, providing a secure and consistent seal under various operating conditions. The nitrile sealing material offers resistance to oils and temperature variations commonly encountered in automotive differentials. With precise bore and outside diameters, this seal fits tightly to prevent fluid leakage and protect internal components.

Compatible Vehicles and Applications

This differential seal is compatible with several vehicle models, including the Lexus IS300 and LS400, Subaru BRZ, and Toyota Cressida and Supra. It is specifically designed to meet the sealing requirements of these driveline systems, ensuring proper fitment and function.

Common Issues Addressed by the FAG SS4438 Seal

• Prevents differential fluid leaks that can lead to component damage
• Protects against dirt and debris intrusion into the differential
• Maintains proper lubrication by sealing the differential housing
• Reduces wear on bearings and gears by preventing contamination
• Helps maintain optimal differential performance and longevity

Installation Notes and Tips

When installing the FAG SS4438 differential seal, ensure the sealing surfaces are clean and free of debris. Use appropriate tools to avoid damaging the metal spring or auxiliary lip. Verify the seal orientation matches the original part to maintain proper sealing function. It is recommended to inspect the differential housing for wear or damage before installation.

Quality Assurance and Warranty

FAG manufactures the SS4438 differential seal to meet stringent quality standards for durability and performance. The use of nitrile sealing material and metal spring construction supports long service life. While specific warranty details may vary, FAG products typically come with manufacturer-backed quality assurance to support reliability in automotive applications.