OE Quality
60-Day Returns

Dorman 926-555 Axle Hub O-Ring
Axle Hub O-Ring Seal
Dorman 926-555 is an axle shaft O-ring built to match the fit and function of the original equipment seal. It helps maintain a tight seal between the wheel hub and axle housing, making it a practical replacement during axle service on applications such as Ford F-250 and Ford F-350 trucks.
Key Features
- OE-style axle hub O-ring for sealing the wheel hub to the axle housing
- NBR construction for serviceable sealing performance
- Round profile with 4.109 inside diameter, 4.387 outside diameter, and 0.139 thickness
- Black finish
- Direct replacement for axle service on Ford F-250, Ford F-350, and select Mopar applications
- Part number 926-555 for easy identification
Detailed Description
This Dorman axle hub O-ring is made from NBR and shaped to match the original seal geometry, helping preserve the seal at the wheel hub and axle housing interface. It is a practical choice when servicing the axle assembly on Ford F-250 and Ford F-350 models, as well as applications that cross-reference to Mopar 68036474AA and Ford F81Z1001BA. The 926-555 O-ring is specified with a 4.109-inch inside diameter, 4.387-inch outside diameter, and 0.139-inch thickness for accurate sealing fit.
This part cross-references Ford F81Z1001BA and Mopar 68036474AA for the same application.
What It Helps Address
- Gear oil seepage at the wheel hub or axle housing seal area
- Loss of sealing integrity after axle service
- Contamination entering the axle housing through a worn seal interface
- Repeat service caused by a flattened, hardened, or damaged O-ring
- Fitment issues when replacing an original axle shaft O-ring
Installation Notes and Tips
Replace the O-ring whenever the axle is serviced, and inspect the sealing surfaces for debris, scoring, or old seal residue before installation. Confirm the axle seal dimensions against the original part and verify application details for Ford F-250, Ford F-350, or other listed cross-reference vehicles before assembly. Part number 926-555 should be matched to the original OE-style seal location to ensure proper seating.
Quality Assurance
Dorman manufactures this axle hub O-ring to match original equipment fit and function using quality materials for service replacement use.
| Brand | Dorman |
|---|---|
| Part Number | 926-555 |
| Material | Nbr |
| Color | Black |
| Inside Diameter | 4.109 |
| Thickness | 0.139 |
| Outside Diameter | 4.387 |
| Rim Shape | Round |
| Package Contents | 2 o-rings |
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.