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NationalPart #: 127591

National 127591 Differential Pinion Seal - Rear Outer
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Verify this part fits before purchasing — free returns if it doesn't
$31.96Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
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✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🔄Easy Returns — Return within 60 days for a full refund
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Not what you need? Click here for all Differential Pinion Seal options
National 127591 Differential Pinion Seal - Rear Outer
| Brand | National |
| Part Number | 127591 |
| Inside Diameter | 2.913 |
| Inside Diameter | 74.000 |
| Thickness | 1.004 |
| Thickness | 25.500 |
| Outside Diameter | 116.000 |
| Outside Diameter | 4.567 |
| Flanged Outside Diameter (Inch) | 5.000 |
| Flanged Outside Diameter (MM) | 127.000 |
| Helix Type | Bi-directional lip design |
| Housing Bore (Inch) | 4.561 |
| Housing Bore (MM) | 115.850 |
| Material | Polyacrylate |
| Outside Diameter (Inch) | 4.567 |
| Outside Diameter (mm) | 116.000 |
| Part Description | Oil seal |
| Series | 120000 |
| Shaft (Inch) | 2.913 |
| Shaft (MM) | 74.000 |
| Type | # |
| Unit of Dimension | Inch |
| Width (Inch) | 1.004 |
| Width (mm) | 25.500 |
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:
123881542952839170243C3Z-4676-AA429-001268036498AA73912
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.