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National 480991 Wheel Seal - Front Inner
National 480991 Wheel Seal Overview
National 480991 is a wheel seal built for driveline and axle sealing applications where the shaft and housing dimensions must match precisely. It uses nitrile construction with Redi-Coat protection and is specified as an oil seal in the 480000 series.
For buyers searching for a wheel seal for Honda Civic or similar fitment-based applications, this National 480991 seal is sized for a 1.500 inch shaft and a 2.062 inch housing bore. The 0.375 inch width supports a compact seal profile for axle and hub sealing service.
Key Features
- Part number: 480991
- Wheel seal / oil seal design
- Nitrile sealing material
- Redi-Coat finish for installation surface protection
- 1.500 inch inside diameter / shaft size
- 2.066 inch outside diameter
- 2.062 inch housing bore
- 0.375 inch width
- Series 480000, Type 48
Detailed Description
National 480991 is engineered as a precision sealing component for axle and wheel-end service where dimensional accuracy matters. The seal measures 1.500 inches on the inside diameter, 2.066 inches on the outside diameter, and 0.375 inches in width, with metric equivalents of 38.100 mm, 52.480 mm, and 9.530 mm. Its nitrile material is selected for sealing performance in driveline environments, while the Redi-Coat surface treatment supports a cleaner sealing interface during installation. National has supplied sealing solutions for more than 75 years and continues to develop products for modern vehicle service needs. This part cross-references Centric Parts 417.30001 for the same application.
What It Helps Address
- Gear oil seepage at the wheel-end seal area
- Contamination entering the axle or hub sealing surface
- Wear-related leakage from an aging wheel seal
- Seal replacement during axle or hub service
- Fitment-sensitive sealing issues where shaft and bore dimensions must match
Installation Notes and Tips
Verify the shaft diameter, housing bore, and seal width before installation to confirm the correct fit for the application. Inspect the sealing surface for scoring, corrosion, or debris, and clean the bore thoroughly before pressing the seal into place. Use proper installation tools to keep the seal square and avoid damaging the nitrile lip or coating. For fitment-based searches, this National 480991 wheel seal is commonly referenced for Honda Civic and similar axle seal applications where the listed dimensions match.
Quality Assurance
National backs this seal with more than 75 years of sealing-system experience and a design approach focused on current vehicle requirements. The 480991 part number is part of National’s 480000 series and is built to meet the dimensional and material specifications listed above.
| Brand | National |
|---|---|
| Part Number | 480991 |
| Housing Bore (Inch) | 2.062 |
| Housing Bore (MM) | 52.370 |
| Inside Diameter | 1.500 |
| Inside Diameter | 38.100 |
| Material | Nitrile |
| Outside Diameter | 2.066 |
| Outside Diameter | 52.480 |
| Outside Diameter (Inch) | 2.066 |
| Outside Diameter (mm) | 52.480 |
| Part Description | Oil Seal |
| Redicoat | Yes |
| Series | 480000 |
| Shaft (Inch) | 1.500 |
| Shaft (MM) | 38.100 |
| Type | 48 |
| Unit of Dimension | Inch |
| Width (Inch) | 0.375 |
| Width (mm) | 9.530 |
This part fits 0 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.