National 480570 Wheel Seal - Front Outer or Rear Outer

Overview of National 480570 Wheel Seal for Ford Bronco

The National 480570 wheel seal is designed specifically for driveline and axle applications on Ford Bronco models. Engineered with nitrile material, this oil seal ensures reliable sealing performance to protect your vehicle's wheel bearings and axle components.

• Inside diameter: 1.375 inches (34.930 mm)
• Outside diameter: 2.004 inches (50.900 mm)
• Thickness/width: 0.328 inches (8.330 mm)
• Sealing material: durable nitrile rubber
• Compatible housing bore: 2.000 inches (50.800 mm)
• Part number: 480570, Series 480000

Technical Details and Material Specifications

The National 480570 wheel seal is constructed from nitrile, a synthetic rubber known for its resistance to oil, heat, and wear. This material choice provides effective sealing in harsh automotive environments, helping to prevent lubricant leaks and contamination. The seal’s precise dimensions, including a 1.375-inch shaft diameter and a 2.004-inch outside diameter, ensure a proper fit within the axle housing bore of 2.000 inches, making it suitable for Ford Bronco driveline assemblies.

Compatible Vehicles and Applications

This wheel seal is compatible with Ford Bronco models requiring a 1.375-inch shaft seal with the specified dimensions. It is designed to maintain axle integrity by sealing the wheel hub and preventing oil leakage, which is critical for driveline performance and longevity.

• Prevents oil leaks from axle assemblies
• Protects wheel bearings from dirt and debris
• Maintains proper lubrication within the axle housing
• Reduces risk of driveline component wear
• Helps avoid costly repairs due to seal failure

Installation Notes and Tips

When installing the National 480570 wheel seal, ensure the axle 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 original part to maintain proper sealing function. Lubricate the seal lip lightly with clean gear oil before installation to reduce initial wear.

Quality Assurance and Warranty Information

National wheel seals are manufactured to meet industry standards for durability and performance. The 480570 part undergoes quality control inspections to ensure dimensional accuracy and material integrity. While specific warranty terms may vary, National typically offers coverage against manufacturing defects to provide confidence in the product’s reliability for Ford Bronco driveline maintenance.