Availability: 6 in stock
This is an o-ring from MOPAR, factory part number 68662072AA.
It is catalogued under Nuts & Washers > Rings & Retainers. Varies by build: Auxiliary Pump.
The number stamped on the old part is the only reliable identifier, since two parts can look identical and differ by a millimetre or by rotation direction.
Leaves our US warehouse in one to two business days, and shipping is free over $59. Confirm the number before you order, because a near match will bolt on and still be wrong. Send the VIN if the old marking has gone.