Helping Waterloo out with an inframe ...

[Mrkentee]

I don't see why they shouldn't replace every wrong part with the correct one. That's what you paid for. And if that can be shown to have caused the failure, the labor also.
And down time, for that matter.
I remember you saying they knew it was "customized". I hope they don't try to use that against you.
At least you're stable enough to see your way through it, either way. And there's no better place to be than where you are to get to the bottom of it, and get it right. Dang!!!