9150/9170 Remote Button Replacement

[RKW]

So, in an unfortunate twist of fate, the hamfisted mechanic at a shop I went to while out of town broke the tabs (where the little screws are) that hold down the 9170 remote button on top of the shift hood. I can't find a P/N for a replacement button assembly. Really hoping that I don't need to replace the whole shifter, and all that entails.

Anybody of any assistance here, perchance?