Pivot shoe

Thanks for posting. We may be able to help, but I am afraid this pivot shoe is too broken to identify. Can you show us an undamaged version, with the center cam still intact, and removed from the window for a clear view? Can you also tell us its width and thickness? We should be able to narrow it down from there. 

The pivot shoes in these new photos look similar in design to our 15-129. This might replace them, but you have to check your dimensions to ensure they match our part, first.

That said, the pivot shoes in your new photo look like a different design compared to the pivot shoe in your first photo. They don't appear alike at all. Can you verify that it's the same part? I don't think the 15-129 will replace that first shoe you showed me.