National 455355 Wheel Seal - Front Inner

National 455355 Wheel Seal Overview

The National 455355 wheel seal is engineered to provide reliable sealing performance for driveline and axle applications. Designed with precision, this oil seal features nitrile material construction and specific dimensions to ensure compatibility with various vehicle makes and models requiring a 2.875 inch shaft diameter.

• Inside diameter: 2.875 inches (73.030 mm)
• Outside diameter: 3.881 inches (98.580 mm)
• Housing bore: 3.876 inches (98.450 mm)
• Width: 0.468 inches (11.890 mm)
• Material: Durable nitrile rubber
• Redicoat surface treatment for enhanced corrosion resistance
• Series: 450000, Type 45 oil seal

Technical Details and Material Specifications

This National wheel seal (part number 455355) is constructed from nitrile, a synthetic rubber known for its resistance to oil, heat, and wear. The seal’s dimensions include an inside diameter of 2.875 inches, matching a 73.030 mm shaft, and an outside diameter of 3.881 inches, fitting a housing bore of approximately 3.876 inches. The 0.468 inch width ensures a secure fit within the axle assembly. The Redicoat coating enhances the seal’s durability by providing additional protection against corrosion, making it suitable for demanding automotive environments.

Applications and Problem Solving

This wheel seal is commonly used in driveline and axle assemblies for vehicles requiring precise sealing to prevent lubricant leakage and contamination ingress. It is compatible with various makes and models that utilize a 2.875 inch shaft diameter and corresponding housing bore dimensions.

• Prevents oil leaks in axle and driveline components
• Protects bearings from dirt and moisture contamination
• Reduces wear and extends component life
• Maintains proper lubrication within wheel hubs
• Helps avoid costly drivetrain repairs due to seal failure

Installation Notes and Tips

When installing the National 455355 wheel seal, ensure the shaft and housing bore are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip. Verify the seal orientation matches the vehicle manufacturer’s specifications to maintain optimal sealing performance.

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 455355 part number is part of the 450000 series, known for consistent quality in sealing solutions. While specific warranty details are not provided, National products typically adhere to strict quality control processes to ensure reliability in automotive applications.