Okay…you have an early one, no valve gear…fitting the Anniversary assembly is not fun without the points on the frame AND the matching cylinder assembly.
You have the old part that’s broken?
I’ve fixed a lot by glue and pin…first off, the silvered parts come out. Sometimes lightly glued, but if the PRC workers were saving money on that shift, no glue.
Barry has metal replacements. Fit, drill, insert.
I had to do that on some heavily used and abused 4-6-0’s around here.
I can probably come up with one assembly for you. Just lightly flex open the parallels and stick your crosshead and piston rod in. Are you missing the rod and crosshead also?
TOC