National 710640 Wheel Seal - Front Inner

National 710640 Wheel Seal Overview

The National 710640 wheel seal is engineered for reliable sealing performance in Ford E-150 and E-150 Club Wagon driveline systems. Designed with precision dimensions and durable polyacrylate material, this oil seal helps maintain axle integrity and prevent lubricant leaks.

• Inside diameter: 2.000 inches (50.8 mm)
• Outside diameter: 2.631 inches (66.82 mm)
• Flanged outside diameter: 3.091 inches (78.5 mm)
• Overall width with side lip: 0.535 inches (13.6 mm)
• Material: Polyacrylate for enhanced wear resistance
• Housing bore diameter: 2.623 inches (66.62 mm)
• Width: 0.264 inches (6.7 mm)
• Series: 710600, Type 62 oil seal

Technical Details and Specifications

The National 710640 wheel seal is part of the 710600 series, designed specifically for driveline and axle sealing applications. Its polyacrylate construction offers resistance to heat and wear, suitable for the demanding conditions of Ford E-150 and E-150 Club Wagon vehicles. The seal’s precise inside diameter of 2.000 inches (50.8 mm) fits the shaft snugly, while the outside diameter of 2.631 inches (66.82 mm) ensures a secure fit within the housing bore of 2.623 inches (66.62 mm). The flanged outside diameter of 3.091 inches (78.5 mm) provides additional stability during installation and operation. The overall width with side lip measures 0.535 inches (13.6 mm), contributing to effective sealing and protection against contaminants.

Compatible Vehicles and Applications

This wheel seal is compatible with Ford E-150 and E-150 Club Wagon models, making it a suitable replacement part for maintaining driveline integrity. The National 710640 is designed to prevent oil leaks and contamination in axle assemblies, ensuring smooth wheel rotation and reducing wear on driveline components.

• Prevents oil and lubricant leaks in axle assemblies
• Protects against dirt and debris intrusion
• Maintains proper lubrication for wheel bearings
• Reduces risk of driveline component damage
• Helps extend service life of axle and wheel components

Installation Notes and Tips

When installing the National 710640 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 original part, with the flanged side facing outward. Lubricate the seal lip lightly with compatible grease or oil before installation to reduce initial wear. Proper installation will help maintain the seal’s effectiveness and prevent premature failure.

Quality Assurance and Warranty

National wheel seals, including part number 710640, are manufactured to meet industry standards for durability and performance. The polyacrylate material provides resistance to heat and wear, suitable for demanding automotive applications. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects. Always consult product documentation or supplier information for exact warranty terms.