National 9363S Wheel Seal - Rear

National 9363S Wheel Seal Overview

The National 9363S wheel seal is engineered for reliable driveline sealing in select Ford and Mercury vehicles. Designed with nitrile material and a Redicoat finish, this oil seal ensures effective protection against contaminants and fluid leaks in your vehicle's axle assembly.

• Inside diameter: 1.500 inch (38.1 mm)
• Outside diameter: 2.264 inch (57.51 mm)
• Width: 0.405 inch (10.29 mm)
• Material: Durable nitrile rubber
• Redicoat finish for enhanced corrosion resistance
• Series: 9000, Type 41 oil seal

Detailed Product Description

The National 9363S wheel seal is part of the 9000 series, designed to provide a precise fit and long-lasting performance in driveline and axle applications. Constructed from nitrile, a synthetic rubber known for its resistance to oil, heat, and wear, this seal maintains integrity under demanding operating conditions. The Redicoat coating adds an extra layer of protection against corrosion, extending the service life of the seal. With an inside diameter of 1.500 inches and an outside diameter of 2.264 inches, it fits securely within the housing bore of 2.260 inches (57.4 mm), ensuring a tight seal around the shaft.

Compatible Vehicles and Applications

This wheel seal is compatible with various Ford and Mercury models, including the Capri, Cougar, Montego, Mustang, Thunderbird, and Villager. The National 9363S is specifically designed to meet the sealing requirements of these vehicles’ driveline systems, helping maintain axle lubrication and preventing contamination.

Common Issues Addressed by the National 9363S Wheel Seal

• Prevents oil leaks from axle assemblies
• Protects against dirt and debris intrusion
• Reduces premature wear of axle components
• Maintains proper lubrication within the driveline
• Helps avoid costly drivetrain repairs due to seal failure

Installation Notes and Tips

When installing the National 9363S wheel seal, ensure the housing bore and shaft are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Verify the seal orientation matches the original part, with the Redicoat side facing outward for corrosion protection. Lubricate the seal lip lightly with clean oil before installation to reduce initial wear.

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 9363S part number undergoes rigorous quality control to ensure consistent dimensions and material properties. While specific warranty details may vary, National typically offers coverage against manufacturing defects, providing confidence in the product’s reliability for Ford and Mercury driveline applications.