Part # ?? for a valve replacement.

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Hi folks.
I have a cracked wheel valve on my FO1 Alpina 7 series...dont ask.. I dont know how.
But BMW is saying I need to replace the wheel...
This is the in spoke valve stem in the attached or linked images:
https://photos.app.goo.gl/FyzPSp9VKMoM9FF29
Does anyone know the part #. I've gone around and around with a San Antonio bmw dealer with no joy.
If I can source a part # I can buy a replacement.
Thanks in advance.

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BMW ALPINA ALLOY WHEEL SCHRADER SCREW-IN TYRE VALVE 91473610061 found them