Availability: 8 in stock
This is an o ring from MOPAR, factory part number 68166577AA.
It is catalogued under Nuts & Washers > Rings & Retainers. Varies by build: Thermostat Housing Tube and Turbocharger Coolant Inlet Tube.
Corrosion at a mounting face is worth cleaning back before fitting anything new, because a part that sits on scale will work loose.
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.