National 417485 Wheel Seal - Front Inner, Rear Inner or Rear Outer

Overview of National 417485 Wheel Seal

The National 417485 wheel seal is engineered to provide reliable sealing performance for driveline and axle applications. Designed with precision, this oil seal helps maintain proper lubrication and prevents contaminants from entering the wheel hub assembly.

• Inside diameter: 2.812 inches (71.420 mm)
• Outside diameter: 3.881 inches (98.580 mm)
• Housing bore: 3.876 inches (98.450 mm)
• Width: 0.437 inches (11.100 mm)
• Material: Durable nitrile rubber with Redicoat coating
• Series: 410000, Type 41 oil seal

Detailed Product Description

The National 417485 wheel seal is constructed from nitrile, a material known for its resistance to oil, heat, and wear, ensuring long-lasting performance in demanding automotive environments. The Redicoat feature enhances corrosion resistance, extending the service life of the seal. With an inside diameter of 2.812 inches and an outside diameter of 3.881 inches, this seal fits shafts and housings with precise tolerances, minimizing leakage and contamination risks. The 0.437-inch width provides a secure fit within the axle assembly, maintaining optimal sealing pressure.

Applications and Problem Solving

This wheel seal is commonly used in driveline and axle assemblies for various vehicle makes and models, including popular trucks and SUVs requiring reliable oil seals for wheel hubs. It addresses several common issues:

• Prevents oil leaks from axle shafts
• Protects wheel bearings from dirt and moisture
• Reduces premature wear of axle components
• Maintains proper lubrication within the hub assembly
• Helps avoid costly drivetrain repairs due to seal failure

Installation Notes and Tips

• Ensure the shaft and housing bore are clean and free of debris before installation
• Use appropriate tools to press the seal evenly into the housing bore without distortion
• Verify the seal orientation matches the oil-retaining side facing the lubricant
• Check shaft surface for damage or wear that could compromise seal integrity
• Apply a light coating of lubricant on the seal lip to reduce initial friction during startup

Quality Assurance and Warranty

National wheel seals, including part number 417485, are manufactured to meet industry standards for durability and performance. The use of nitrile material and Redicoat technology ensures resistance to oil degradation and corrosion. While specific warranty terms may vary, National products typically come with a limited warranty against manufacturing defects, providing confidence in the product's reliability for automotive driveline applications.