Availability: 5 in stock
This is a multi-purpose nut from GM, factory part number 10137397.
It is catalogued under Nuts & Washers > Nuts.
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 nut is also a sealing element, as on a fluid line, the thread form is part of the seal rather than a fastening detail.
Leaves our US warehouse in one to two business days, and shipping is free over $59. 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.
