Help keep gear lubricant inside the rear axle and road grime out with the SKF differential pinion seal, part number 18870A. This rear differential pinion seal fits the 2007-2009 Jeep Commander, 2007-2009 Jeep Grand Cherokee, 2007-2009 Jeep Liberty, and 2007-2017 Jeep Wrangler. See the Buyer's Guide tab for engine-specific details.
The pinion seal sits where the pinion shaft enters the differential housing. The seal body stays stationary while its lip contacts the rotating pinion yoke. Signs it may need replacing include gear oil seeping or dripping at the front of the rear differential, an oily film around the pinion yoke, or a dropping fluid level. Diagnose the source of the leak before replacing the seal.
SKF has designed and developed seals since it invented the first integrated shaft seal in 1928, and it has continued to pioneer new designs and bonding techniques. Its seals are made to specific designs with premium materials, chosen to suit both the application and its environment.
Interchange: 61617-1A
616171A · 68003265AA
This part cross-references / interchanges with the following part numbers:
What vehicles does the SKF 18870A fit?
It fits the 2007-2009 Jeep Commander, Grand Cherokee and Liberty, plus the 2007-2017 Jeep Wrangler. See the Buyer's Guide tab for engine details.
Is this a front or rear differential seal?
The SKF 18870A is cataloged as a rear differential pinion seal for the listed Jeep applications.
What are signs a differential pinion seal may need replacing?
Common signs include gear oil leaking at the pinion yoke, wetness on the front of the differential housing, or a low fluid level. Confirm the source of the leak before replacing the seal.
What is the seal case made of?
The body uses deep drawn sheet steel for a rigid, stress-resistant metal case. The garter spring is made from cold drawn steel wire.
What numbers does SKF 18870A interchange with?
It cross-references to 61617-1A (616171A) and 68003265AA.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
