National 225275 Wheel Seal - Rear Outer

National 225275 Wheel Seal Overview

The National 225275 wheel seal is engineered for reliable driveline protection in select Lexus and Toyota vehicles. Designed to maintain optimal sealing performance, this oil seal helps prevent leaks and contamination in wheel hubs for models like the Camry, Celica, Highlander, and RX300.

• Inside diameter: 2.047 inches (52.000 mm)
• Outside diameter: 2.957 inches (75.110 mm)
• Housing bore: 2.953 inches (75.000 mm)
• Overall width with side lip: 0.472 inches (12.000 mm)
• Width: 0.295 inches (7.500 mm)
• Material: durable nitrile rubber
• Redicoat surface treatment for enhanced corrosion resistance
• Series: 220000, Type: 66

Technical Details and Material Specifications

This National wheel seal (part number 225275) is constructed from nitrile, a synthetic rubber known for its resistance to oil, heat, and wear. The seal features a Redicoat coating that improves corrosion resistance, extending the service life in harsh environments. With precise dimensions including a 2.047-inch inside diameter and a 2.957-inch outside diameter, it fits securely within the housing bore of 2.953 inches, ensuring a tight seal around the shaft. The overall width with side lip measures 0.472 inches, providing additional sealing surface to prevent fluid leakage.

Compatible Vehicles and Applications

This wheel seal is compatible with various Lexus and Toyota models, specifically designed for:

• Lexus RX300
• Toyota Camry
• Toyota Celica
• Toyota Highlander

It is ideal for use in driveline and axle assemblies where maintaining oil containment and preventing dirt ingress is critical.

Common Issues Addressed by National 225275 Wheel Seal

• Prevents oil leaks from wheel hubs and axle assemblies
• Protects bearings from dirt, dust, and moisture contamination
• Reduces premature wear of driveline components
• Maintains proper lubrication within the axle housing
• Helps avoid costly repairs due to seal failure

Installation Notes and Tips

Ensure the housing bore and shaft surfaces are clean and free of debris before installation. Use appropriate tools to press the seal evenly into place without damaging the sealing lip or Redicoat surface. Verify the seal orientation matches the original part to maintain proper oil retention. Lubricate the sealing lip lightly with clean oil to reduce initial wear during startup.

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 225275 part undergoes rigorous quality control to ensure dimensional accuracy and material integrity. This product includes a limited warranty against manufacturing defects, providing confidence in its reliability for Lexus and Toyota driveline applications.