According to the November 1939 prewar parts list I have, part number 226E-68 is listed as "Boilerfront Complete". Note, I've been told by various part dealers that the repro boilerfronts for the 226 are not the best, primarily the hinged door bit. That said, there are few alternatives. The boilerfront for the 225E is the same, so finding an original beater might be.
PD