National 473473 Wheel Seal - Front Inner

National 473473 Wheel Seal Overview

The National 473473 wheel seal is an oil seal built for driveline and axle sealing applications where consistent retention and contamination control matter. It uses nitrile material and a Redi-Coat finish to support a reliable seal at the housing bore and shaft interface.

For buyers searching for a wheel seal for Honda Civic, Toyota Corolla, or similar axle and driveline service needs, National 473473 provides a direct replacement option backed by National’s long history in sealing technology.

Key Features

• Part number: 473473
• Wheel seal / oil seal for driveline and axle sealing systems
• Nitrile sealing material
• Redi-Coat finish: Yes
• Inside diameter: 2.250 in. / 57.150 mm
• Outside diameter: 3.066 in. / 77.880 mm
• Housing bore: 3.061 in. / 77.750 mm
• Width: 0.375 in. / 9.530 mm
• Zero duplication part
• National 473473 series: 470000

Detailed Description

National 473473 is a wheel seal designed around precise dimensional control, with a 2.250-inch shaft diameter, 3.066-inch outside diameter, and 0.375-inch width. The nitrile construction is selected for sealing performance in axle and wheel-end environments, while the Redi-Coat surface helps support installation and sealing consistency. This part is identified as an oil seal in the National 470000 series and is listed as a zero duplication part for straightforward catalog matching.

This part cross-references SKF 22390 and Gates 22382 for the same application. When sourcing a replacement wheel seal for Honda Civic or Toyota Corolla service, verify the shaft, housing bore, and seal width against the original component before installation. National 473473 is also referenced by multiple aftermarket part numbers, making it a practical match for wheel seal replacement searches.

Common Problems This Seal Can Address

• Gear oil or lubricant leakage at the wheel end
• Contamination entering the axle or hub sealing area
• Seal wear from age, heat, or mileage
• Loss of sealing integrity at the housing bore
• Replacement needs during driveline or axle service

Installation Notes and Tips

Confirm the shaft diameter, housing bore, and seal width before installation. Inspect the sealing surface for scoring, corrosion, or debris, and clean the bore thoroughly so the new seal seats evenly. Use proper seal installation tools to avoid distorting the lip or damaging the nitrile material. Match the replacement to the original application details for accurate fitment on vehicles such as Honda Civic and Toyota Corolla where this seal is used.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop products for modern vehicle applications. Part number 473473 reflects that sealing-focused engineering approach for wheel seal and oil seal service.