National 710080 Wheel Seal - Rear Inner

National 710080 Wheel Seal Overview

The National 710080 wheel seal is engineered to provide reliable sealing performance for driveline and axle applications. Designed with precision, this oil seal features nitrile material construction and specific dimensional attributes to ensure compatibility with various vehicle makes and models requiring a 3.150 inch (80 mm) shaft diameter.

• Inside Diameter: 3.150 inches (80.000 mm)
• Outside Diameter: 4.456 inches (113.180 mm)
• Housing Bore: 4.449 inches (113.000 mm)
• Overall Width with Side Lip: 0.866 inches (22.000 mm)
• Width: 0.472 inches (12.000 mm)
• Material: Durable nitrile for oil resistance
• Type: 90 series oil seal

Technical Details and Material Specifications

The National 710080 wheel seal is part of the 710000 series, designed specifically for axle and driveline sealing systems. Constructed from nitrile, this seal offers resistance to oil and other automotive fluids, maintaining integrity under typical operating temperatures and conditions. The precise inside diameter of 3.150 inches (80 mm) matches common shaft sizes found in many vehicles, while the outside diameter of 4.456 inches (113.180 mm) ensures a secure fit within the housing bore of 4.449 inches (113 mm). The overall width with side lip of 0.866 inches (22 mm) provides additional sealing surface to prevent leaks.

Applications and Problem Solving

This wheel seal is used primarily in driveline and axle assemblies to prevent oil leakage and contamination ingress. It is compatible with vehicles requiring a 3.150 inch shaft seal, including certain Ford, Chevrolet, and Dodge models commonly serviced with National parts.

• Prevents oil leaks from axle shafts
• Protects bearings from dirt and debris contamination
• Maintains proper lubrication within the axle housing
• Reduces wear on driveline components
• Helps avoid costly drivetrain repairs due to seal failure

Installation Notes and Tips

When installing the National 710080 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. Lubricate the seal lip with clean oil before installation to reduce initial wear. Verify the seal orientation matches the original part to maintain proper sealing function.

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 710080 part number undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty terms may vary, National typically offers coverage against manufacturing defects to support professional repair and maintenance needs.