Help me identify/find a part for a 99 Grand Prix

[thalfmann1]

I am looking for a part for my daughters 1999 Pontiac Grand Prix. I do not know exaclty what it is called or the part number.
I am looking for the black trim pieces that go on the inside of the door at the top by the window. They finish off the door panel. Does anyone know what these are called or the part nunber?
All four of them have cracked on this car. Has anyone else had this problem?
Please help me if you know what these are.
Thanks.

[jem270]

I am looking at a pdf copy of a parts list for 97-02 GP. It appears what you need is called "belt moulding" on page 69. It is listed under "exterior trim" which is odd.

GT or GTP Model
right side 10437137
left side 10437138

SE Model
right/left 10437135-6

It also lists an "upper trim panel" under "interior trim sedan".
right 10248962
left 10248963

If it were me I would call it "upper door" moulding.

Hope this helps.