National 710430 Wheel Seal - Front Inner

National 710430 Wheel Seal Overview

The National 710430 wheel seal is engineered for reliable sealing performance in Ford Bronco, F-150, F-250, and F-250 HD driveline applications. Designed with precision dimensions and durable nitrile material, this oil seal helps maintain axle integrity and prevent fluid leaks.

• Inside diameter: 2.394 inches (60.8 mm)
• Outside diameter: 2.705 inches (68.7 mm)
• Flanged outside diameter: 3.220 inches (82 mm)
• Overall width with side lip: 0.728 inches (18.5 mm)
• Width: 0.433 inches (11 mm)
• Material: Nitrile for enhanced resistance to oil and wear
• Housing bore diameter: 2.697 inches (68.5 mm)
• Part number: 710430, part of the 710400 series

Technical Details and Material Specifications

This National wheel seal (part number 710430) is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based oils and fluids. The seal’s precise inside diameter of 2.394 inches (60.8 mm) and outside diameter of 2.705 inches (68.7 mm) ensure a tight fit on the axle shaft and housing bore, which measures 2.697 inches (68.5 mm). The flanged outside diameter of 3.220 inches (82 mm) provides additional sealing surface and stability during operation. With an overall width of 0.728 inches (18.5 mm) including the side lip, this oil seal is designed to maintain effective sealing under typical driveline conditions found in Ford Bronco and F-Series trucks.

Compatible Vehicles and Applications

This wheel seal is compatible with the following Ford models:

• Ford Bronco
• Ford F-150
• Ford F-250
• Ford F-250 HD

It is specifically designed for use in driveline and axle sealing systems, helping to prevent oil leaks and contamination in wheel hubs and axle assemblies.

Common Issues Addressed by National 710430 Wheel Seal

• Prevents axle oil leaks that can cause driveline damage
• Protects wheel bearings from dirt and moisture intrusion
• Reduces risk of premature bearing wear due to contamination
• Maintains proper lubrication within axle housing
• Helps avoid costly repairs related to seal failure

Installation Notes and Tips

When installing the National 710430 wheel seal, ensure the following for optimal performance:

• Clean the housing bore and shaft thoroughly before installation
• Inspect the shaft for wear or damage that could affect sealing
• Use appropriate tools to press the seal evenly into the housing bore
• Verify the seal lip is oriented correctly to face the lubricant side
• Apply a light coating of compatible lubricant on the seal lip before installation

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 710430 seal is part of the 710400 series, known for consistent quality in driveline sealing applications. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure reliability in Ford Bronco and F-Series truck applications.