Help keep transfer case fluid sealed in and road dirt and water out with the SKF transfer case output shaft seal, part number 21257A. It is a direct-fit replacement for the 2005-2017 Jeep Grand Cherokee, 2006-2010 Jeep Commander, 2007-2011 Dodge Nitro, 2008-2012 Jeep Liberty, and 2011-2017 Dodge Durango. It is listed for both the front and rear transfer case output shaft positions on these applications.
This seal fits into the opening where the output shaft leaves the transfer case. The seal body stays stationary, and its lip contacts the rotating shaft to hold lubricant in the case.
- Garter spring: made from cold drawn steel wire for fluid retention.
- Metal case: formed from deep drawn sheet steel to give a rigid, stress-resistant body.
- Contaminant protection: designed to protect against dirt and water.
- Correct fit: produced with tested design and materials.
SKF invented the first integrated shaft seal in 1928. The company has continued to develop new seal designs and bonding techniques, building each seal to a specific design for its application and operating environment.
Signs this part may need replacing: fluid seeping or dripping where the driveshaft meets the transfer case, a wet film around the output shaft, or a transfer case fluid level that keeps dropping. Diagnose the leak source before replacing.
See the Buyer's Guide tab for complete application details.
Interchange: OS-Q530C
OSQ530C · 4136390100 · 05143715AA · 5143715AA · 27SS6390 · 45356
This part cross-references / interchanges with the following part numbers:
4136390100, 05143715AA, 5143715AA, OS-Q530C, 27SS6390, 45356
