National 8477S Wheel Seal - Rear

National 8477S Wheel Seal Overview

National 8477S is a wheel seal built for driveline and axle sealing applications where the shaft and housing dimensions must match precisely. It uses nitrile construction and is specified as an oil seal in the 8000 series, with a 1.618 in. shaft diameter, 2.535 in. outside diameter, and 0.750 in. width.

For buyers searching for a National 8477S wheel seal for axle service, this seal is sized for a 41.097 mm shaft and a 64.390 mm outside diameter. It is a direct-fit sealing component for applications that require accurate housing bore and shaft measurements.

Key Features

• Part number: 8477S
• Brand: National
• Wheel seal / oil seal design
• Nitrile sealing material
• Inside diameter: 1.618 in. (41.097 mm)
• Outside diameter: 2.535 in. (64.390 mm)
• Housing bore: 2.531 in. (64.290 mm)
• Width: 0.750 in. (19.050 mm)
• Series: 8000
• Type: 48

Product Details

National has supplied sealing solutions for more than 75 years, and the 8477S reflects that focus on dimensional accuracy and modern vehicle sealing needs. This wheel seal is engineered around the listed shaft, bore, and width measurements, making it a practical choice when replacing a worn axle or wheel-end seal on vehicles that call for this exact specification. If you are comparing National 8477S against other listings for a Honda Civic or similar vehicle application, verify the dimensions against the original seal before ordering.

This part cross-references Bosch 16449 for the same application.

Common Problems This Seal Can Address

• Oil leakage at the wheel end or axle seal area
• Contamination entering the sealed hub or bearing area
• Seal wear from age, heat, or mileage
• Loss of sealing performance from hardened or damaged nitrile material
• Incorrect replacement sizing when matching shaft and housing dimensions

Installation Notes and Tips

Confirm the shaft diameter, housing bore, and seal width before installation. Clean the sealing surface thoroughly and inspect the shaft for grooves, corrosion, or scoring that can affect seal life. For Honda Civic and other vehicle-specific searches, match the original seal dimensions and application details to the service information before pressing the seal into place.

Quality Assurance

National is a long-established sealing brand with a broad history in automotive sealing technology. The 8477S is part of the 8000 series and is built to the published dimensional specifications for accurate replacement selection.