Mitsubishi D3 -Blank Main Bearing Cap

The shop I work for was tasked with a rebuild on a D3 Cat with an S6S Mitsubishi engine. When we got down to the crankshaft and started disassembly one of the main caps is broken/split right down the center. I'm trying to locate a blank bearing cap to replace it and have had no luck with that. I was hoping that someone in this site may be able to help. I have not posted much in the past, mostly just read and watched. If anyone can point me in the right direction that would be great. Thank you.

Mitsubishi D3 -Blank Main Bearing Cap