National 710073 Wheel Seal - Front Inner

National 710073 Wheel Seal for Nissan D21 Pickup

The National 710073 wheel seal is engineered to provide reliable sealing performance for Nissan D21 and Pickup models. Designed with precision dimensions and durable nitrile material, this oil seal helps maintain driveline integrity and prevent leaks.

• Inside diameter: 2.126 inches (54.000 mm)
• Outside diameter: 2.972 inches (75.480 mm)
• Flanged outside diameter: 0.315 inches (8.000 mm)
• Housing bore diameter: 2.965 inches (75.300 mm)
• Overall width with side lip: 0.709 inches (18.000 mm)
• Seal width: 0.472 inches (12.000 mm)
• Material: Nitrile for oil resistance and durability
• Series: 710000

Technical Details and Material Specifications

This National wheel seal (part number 710073) is constructed from nitrile, a synthetic rubber known for its resistance to oil, heat, and wear. The seal’s precise inside diameter of 2.126 inches (54 mm) fits the shaft snugly, while the outside diameter of 2.972 inches (75.48 mm) ensures a secure fit within the housing bore of 2.965 inches (75.3 mm). The flanged outside diameter of 0.315 inches (8 mm) and overall width of 0.709 inches (18 mm) with side lip provide additional sealing surface to prevent fluid leakage. This wheel seal is part of National’s 710000 series, designed specifically for driveline and axle sealing applications.

Compatible Nissan Models and Applications

This wheel seal is compatible with Nissan D21 and Pickup models, making it suitable for maintaining the driveline and axle sealing systems on these vehicles. The National 710073 wheel seal is ideal for replacing worn or damaged seals to restore proper oil retention and prevent contamination in the wheel hub assembly.

• Prevents oil leaks from the wheel hub
• Protects driveline components from dirt and debris
• Maintains proper lubrication of axle shafts
• Reduces risk of premature bearing failure
• Ensures consistent vehicle performance and safety

Installation Notes and Tips

When installing the National 710073 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 lightly with clean oil before installation to reduce initial wear. Verify the seal is seated flush and properly aligned to avoid leaks or premature failure.

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 710073 part number undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in the product’s reliability.