National 473823 Wheel Seal - Front, Rear or Rear Inner

National 473823 Wheel Seal Overview

The National 473823 wheel seal is engineered to provide reliable sealing performance for a variety of driveline applications. Designed with durable nitrile material and precise dimensions, this oil seal is compatible with multiple vehicle makes and models including BMW, Chevrolet, Ford, Kia, Mazda, Nissan, Pontiac, and Suzuki.

• Inside diameter: 1.378 inches (35.000 mm)
• Outside diameter: 2.172 inches (55.180 mm)
• Thickness/width: 0.315 inches (8.000 mm)
• Sealing material: Nitrile for resistance to oil and wear
• Redicoat surface treatment for enhanced durability
• Housing bore size: 2.165 inches (55.000 mm)
• Part type: Wheel seal, oil seal series 470000

Technical Details and Material Specifications

This National wheel seal (part number 473823) is constructed from nitrile, a synthetic rubber known for its excellent resistance to petroleum-based oils and greases. The seal features a Redicoat coating that improves surface hardness and wear resistance, extending the service life in demanding driveline environments. With an inside diameter of 1.378 inches and an outside diameter of 2.172 inches, it fits precisely into housings with a bore diameter of approximately 2.165 inches, ensuring a tight seal around shafts measuring 1.378 inches in diameter.

Compatible Vehicles and Applications

This wheel seal is compatible with a range of vehicles, including BMW models such as the 323Ci, 325i, 328i, 330i, 335i, 525i, 528i, 530i, 535i, and Z3/Z4 series. It also fits Chevrolet, Ford, Geo, Kia, Mazda, Nissan, Pontiac, and Suzuki models like the B2000, Courier, D21, Grand Vitara, Pathfinder, Pickup, Sidekick, Sportage, Sunrunner, Tracker, Vitara, X-90, X3, X5, X6, and XL-7. This makes it suitable for driveline and axle sealing needs across multiple vehicle platforms.

Common Issues Addressed by National 473823 Wheel Seal

• Prevents oil leaks from wheel hubs and axle assemblies
• Protects driveline components from dirt and contaminants
• Reduces premature wear of bearings and shafts
• Maintains proper lubrication within axle housings
• Helps avoid costly driveline repairs due to seal failure

Installation Notes and Tips

When installing the National 473823 wheel seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into the bore without damaging the sealing lip or nitrile material. Verify the seal orientation matches the original part to maintain proper oil retention. Lubricate the seal lip lightly with compatible grease or oil before installation to reduce initial wear.

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 473823 part is part of the 470000 series, known for consistent quality in sealing applications. This product includes a limited warranty against manufacturing defects, ensuring reliability when installed according to specifications.