You could try these guys. I think one of them is or used to be "TheNorcoldGuy" operating out of Michigan, but this website suggests Florida.
Ask them about it. I used The Norcold Guy a few years back for some replacement parts and they were very helpful and quick to respond.
https://rvfridgeguys.com/
Mike. Comments are anecdotal or personal opinions, and worth what you paid for them.
2018 (2017 Sprinter Cab Chassis) Navion24V + 2016 Wrangler JKU (sold @ ????)
2016 Sunstar 26HE, V10, 3V, 6 Speed (sold @ 4600 miles)
2002 Roadtrek C190P (sold @ 315,000kms)