Availability: 9 in stock
This is a retainer kit from GM, factory part number 19366072.
It is catalogued under Nuts & Washers > Rings & Retainers.
Sealing washers on transmission pans, drain plugs and A/C lines are single-use, and reusing one is the usual cause of a leak after a repair.
Where a diagram shows several similar items on one assembly, the difference between them is normally length, shoulder or handedness.
The part number is the thing to verify. Where the old part carries no legible number, a VIN and a photograph are enough for us to identify it.
Handed to the carrier within one to two business days from our US warehouse, free over $59.