SKF 21823A Differential Pinion Seal - Rear
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SKF

SKF 21823A Differential Pinion Seal - Rear

Brand SKF 21823A
Position Rear
Width 0.433
Outside Diameter 3.475
Sealing Surface Type Polyacrylate
Shaft Diameter 2.165
Fits Dodge and Jeep · 4 vehicles

OE-style sealing. Application-specific design for differential service and lubricant retention.

Polyacrylate surface. Selected for dependable sealing performance in demanding driveline conditions.

Precision dimensions. Sized for the specified shaft and housing interface.

Cross-references 68019927AA and 0139974346 for the same application. See all 2.

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SKF Differential Pinion Seal

The SKF 21823A differential pinion seal is built for rear axle sealing applications that need reliable lubricant retention and contamination control. It is a fitment-based replacement for select Dodge Durango and Jeep Grand Cherokee models with the 225mm axle.

  • Fits 2011-2012 Dodge Durango, rear, w/ 225mm axle.
  • Fits 2011-2012 Jeep Grand Cherokee, rear, 225mm axle.
  • Polyacrylate sealing surface type for durable sealing performance.
  • Engineered to keep gear oil in and road contaminants out.
  • SKF 21823A replacement seal for driveline sealing service.

Detailed Overview

The SKF 21823A is a differential pinion seal designed around specific dimensions and sealing materials for the listed rear axle applications. With a 3.475 outside diameter, 2.165 shaft diameter, and 0.433 width, it is specified for a precise sealing interface in the differential assembly. This part number, 21823A, is used for rear driveline sealing service on the Dodge Durango and Jeep Grand Cherokee applications shown here.

SKF has a long history in seal engineering, and this product reflects that experience through application-specific design and premium material selection. The polyacrylate sealing surface type is selected to support consistent sealing where lubricant retention and contamination exclusion are critical. If you are servicing a Dodge Durango or Jeep Grand Cherokee rear differential, 21823A provides a direct replacement option for the listed axle configuration.

Common Issues Addressed

  • Gear oil seepage at the pinion seal area.
  • Contamination entering the differential housing.
  • Seal wear from age, heat, and driveline use.
  • Loss of sealing integrity around the pinion shaft interface.

Installation Notes and Tips

Verify axle configuration before installation, since this seal is listed for the 225mm axle application only. Inspect the pinion shaft and sealing surface for wear or damage before installing the new seal, and confirm the dimensions match the original part. Proper installation technique is important to maintain sealing performance in the differential assembly.

Quality Assurance

SKF designs and manufactures seals to high quality standards, drawing on more than a century of seal development and production experience. The brand’s seal engineering focus is centered on keeping lubricants in and contaminants out for long service life and dependable operation.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2012DodgeDurangoRearw/ 225mm Axle:
2012JeepGrand CherokeeRear225mm Axle
2011DodgeDurangoRearw/ 225mm Axle:
2011JeepGrand CherokeeRear225mm Axle
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
68019927AA0139974346