Hi everyone, I'm new here so forgive me if this has already been answered.  I searched the forum but couldn't find any recent answers to this.

Does anyone know where to find replacement buffers for the smaller HO scale locomotives?  I have a Thomas locomotive with a missing buffer (thanks to our 2 year old thinking it was a brio set).  It looks like these locomotives are pretty modular so it should be able to be repaired, but I'm having a hard time finding the specific part.

For what it's worth, it's HT741-00L01 in this diagram:  https://www.bachmanntrains.com/home-usa/dwg/dwgs/58741.pdf

Thanks in advance for any help you all may provide!