OE Quality
60-Day Returns

National 380001A Wheel Seal - Front Inner
Overview of National 380001A Wheel Seal
The National 380001A wheel seal is engineered for reliable driveline protection in various vehicle applications. Designed with precision dimensions and durable PTFE material, this oil bath seal ensures effective sealing performance for axle shafts, helping maintain optimal vehicle operation.
- Part Number: 380001A
- Material: PTFE for enhanced wear resistance
- Outside Diameter: 4.852 inches (123.110 mm)
- Housing Bore Diameter: 4.840 inches (122.990 mm)
- Shaft Diameter: 3.500 inches (88.900 mm)
- Width: 0.910 inches (23.110 mm)
- Compatible installation tool: RD307
- Type: 10 oil bath seal from the 380000 series
Detailed Product Description
The National 380001A wheel seal is part of the 380000 series, designed specifically for driveline and axle sealing applications. Constructed from PTFE, this seal offers excellent resistance to heat, chemicals, and wear, making it suitable for demanding automotive environments. The precise outside diameter of 4.852 inches and housing bore of 4.840 inches ensure a secure fit within the axle housing, while the 3.500-inch shaft diameter compatibility supports a wide range of axle shafts. With a width of 0.910 inches, this oil bath seal maintains effective lubrication retention and prevents contamination ingress, critical for maintaining axle performance and longevity.
Common Applications and Problem Solving
- Prevents oil leaks in axle assemblies
- Protects driveline components from dirt and debris
- Maintains lubrication within oil bath axle housings
- Reduces wear on axle shafts and bearings
- Helps avoid costly driveline repairs due to seal failure
Installation Notes and Tips
For proper installation of the National 380001A wheel seal, use the RD307 installation tool to ensure even seating and avoid damage to the seal lip. Clean the housing bore and shaft thoroughly before installation to prevent contamination. Verify the seal orientation matches the oil bath design to maintain effective sealing. Avoid excessive force during installation to preserve the integrity of the PTFE material.
Quality Assurance and Warranty
National wheel seals are manufactured to meet strict industry standards for durability and performance. The 380001A part undergoes rigorous quality control to ensure dimensional accuracy and material consistency. While specific warranty details are not provided, National products typically come with manufacturer-backed reliability suitable for professional automotive repair and maintenance.
| Brand | National |
|---|---|
| Part Number | 380001A |
| Width | 0.910 |
| Width | 23.110 |
| Outside Diameter | 123.110 |
| Outside Diameter | 4.852 |
| Housing Bore | 122.990 |
| Housing Bore | 4.840 |
| Housing Bore (Inch) | 4.840 |
| Housing Bore (MM) | 122.990 |
| Installation Tool | Rd307 |
| Material | Ptfe |
| Outside Diameter (Inch) | 4.852 |
| Outside Diameter (mm) | 123.110 |
| Part Description | Oil bath seal |
| Series | 380000 |
| Shaft (Inch) | 3.500 |
| Shaft (MM) | 88.900 |
| Shaft Diameter | 3.500 |
| Shaft Diameter | 88.900 |
| Type | 10 |
| Unit of Dimension | Inch |
| Width (Inch) | 0.910 |
| Width (mm) | 23.110 |
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.