National 470898 Wheel Seal - Front, Front Forward, Rear or Rear Rearward

Overview of National 470898 Wheel Seal

The National 470898 wheel seal is engineered for reliable driveline protection in select Chevrolet, Ford, and GMC vehicles. Designed to maintain optimal sealing performance, this oil seal helps prevent leaks and contamination in wheel hubs for models like the Chevrolet Blazer and Ford F-250.

• Inside diameter: 2.125 inches (53.980 mm)
• Outside diameter: 2.879 inches (73.130 mm)
• Thickness/width: 0.375 inches (9.530 mm)
• Sealing material: durable nitrile compound
• Redicoat finish for enhanced corrosion resistance
• Compatible housing bore: 2.875 inches (73.030 mm)
• Part number: 470898, series 470000

Technical Details and Material Specifications

This wheel seal from National is constructed using nitrile, a synthetic rubber known for its resistance to oil, heat, and wear. The 2.125-inch inside diameter fits shafts precisely, while the 2.879-inch outside diameter matches the housing bore of 2.875 inches, ensuring a secure fit. The 0.375-inch thickness provides adequate sealing surface to prevent oil leakage and contamination. The Redicoat finish adds a protective layer to reduce corrosion, extending the seal's service life in demanding environments.

Compatible Vehicles and Applications

The National 470898 wheel seal is compatible with a range of Chevrolet, Ford, and GMC trucks and SUVs, including:

• Chevrolet Blazer, C10 Suburban, C20 Suburban
• Ford F-100, F-250, F-350
• GMC Jimmy, K10 Suburban, K20 Suburban

This part is designed specifically for driveline and axle sealing systems, making it suitable for maintenance and repair of wheel hubs on these models.

Common Issues Addressed by the National 470898 Wheel Seal

• Prevents oil leaks from wheel hubs
• Protects bearings from dirt and moisture contamination
• 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

• Ensure the housing bore and shaft dimensions match the seal specifications before installation
• Clean the sealing surfaces thoroughly to remove debris and old sealant
• Use appropriate tools to press the seal evenly without distortion
• Inspect the shaft for wear or damage that could compromise the seal
• Apply a light coating of lubricant on the seal lip to ease installation and initial operation

Quality Assurance and Warranty Information

National wheel seals, including part number 470898, are manufactured to meet industry standards for durability and performance. The nitrile material and Redicoat finish contribute to long service life under normal operating conditions. This part is a zero duplication component, ensuring authenticity and precise fitment. Warranty coverage details should be confirmed with the original equipment manufacturer or distributor.