Mystery Door Parts Are Cracked -- What Do They Do?

[Shawn D.]

OK, I lied. I know what they are, what they do, and why they're cracked. I just thought I'd get more eyes on the issue if I asked in a screwy way -- kind of in the vein of the "I think this part is broken, what does it do?" type of questions you see here on the board regularly. I asked about them last week but didn't get any answers to the problem, so I figured I'd try again. Sorry for the subterfuge!

What I am looking for is a source for replacement side window squeegees -- these are the rubber parts that attach at the upper edge of the door skin and seal/wipe against the side windows as they move up and down. I am not asking about windshield wipers. Putting P/N 126 725 03 65 into the Fastlane search returns "Sorry, this product is temporarily unavailable..." Where is this part available besides the dealer? Are there any aftermarket replacements that will work well? (no success at JC Whitney, BTW)

Thanks in advance,
Shawn