Can anyone identify this 12V DC power connector found on a radio transmitter?
I believe the Kenwood part number is PG-2N, the connector is actually made by 3M.  You didn't say which gender you needed, but you can start here:

https://www.amazon.com/Agile-Shop-T-Shape-Kenwood-TM-G707-TM-D700/dp/B01N0E7S8I

Bare connector:

https://powerwerx.com/oemt-power-connector-source-side

BTW, consider just cutting this connector off and putting Anderson Powerpoles on instead.