National 1973 Wheel Seal - Front, Front Inner or Rear Inner

Reliable Wheel Seal for INFINITI, Nissan, and More

The National 1973 wheel seal is engineered to provide durable sealing performance for a variety of driveline applications. Designed with precision to fit specific models from INFINITI, Nissan, Mazda, Mercury, Suzuki, and Volkswagen, this oil seal helps maintain optimal axle function and prevent fluid leaks.

• Inside diameter: 1.890 inches (48.000 mm)
• Outside diameter: 2.571 inches (65.300 mm)
• Thickness/width: 0.315 inches (8.000 mm)
• Sealing material: Nitrile for resistance to oil and wear
• Housing bore compatibility: 2.559 inches (65.000 mm)
• Part type: Wheel seal, part number 1973

Technical Details and Material Specifications

This National wheel seal (part number 1973) is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based oils and fluids. The seal’s dimensions include an inside diameter of 1.890 inches (48 mm) and an outside diameter of 2.571 inches (65.3 mm), with a thickness of 0.315 inches (8 mm). These precise measurements ensure a secure fit within the housing bore of 2.559 inches (65 mm), providing effective sealing around the shaft to prevent oil leakage and contamination.

Compatible Vehicles and Applications

This wheel seal is compatible with a range of vehicles, including INFINITI models such as the Q50, Q60, Q70, QX50, and QX80; Nissan models including Armada, Frontier, Pathfinder, TITAN, and Xterra; Mazda 323; Mercury Tracer; Suzuki Equator; and Volkswagen Vanagon. The National 1973 seal is suitable for driveline and axle sealing systems where reliable oil retention is critical.

Common Issues Addressed by the National 1973 Wheel Seal

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

Installation Notes and Tips

Ensure the housing bore and shaft surfaces are clean and free of debris before installation. Verify the seal orientation matches the original part to maintain proper sealing function. Use appropriate tools to press the seal evenly into the bore without distortion. Avoid damaging the sealing lip during installation to ensure optimal performance.

Quality Assurance and Warranty

National manufactures this wheel seal to meet industry standards for durability and performance. The nitrile material offers resistance to oil and wear, contributing to a longer service life. While specific warranty details are not provided, National products are generally backed by quality control processes to ensure reliability in automotive driveline applications.