This looks like a standard no-name ebay flyback. You can tell it's not original because aftermarket doesn't have the top screw mount, they face forward instead. I've only seen the recessed pots in the really inexpensive ones. They're fine until they are not.
In my experience, most of the failed flybacks i've replaced have been these aftermarket ones for catastrophic failure.
Most of the originals that i've changed out have been for pot issues, like bad focus or flickering brightness.