Tom -
I looked at the parts diagrams on Pelican Parts website, and at the clips on my car, and found nothing.
If you don't mind my asking, do you actually need the part #, or do you just want to replace the part? If the latter, Sunset imports (
http://www.sunsetimports.com/go/pinqry/) can probably get you a new part, and Parts Heaven (
http://www.partsheaven.com/), or one of the other places that sells used parts, will likely have used clips.
If you just want the part number, and if no one else on the forum can provide it, I would think any Porsche dealer could give you that information.
Good luck.
Joe