Nippondenso model 6C-500 Compressor. This is a New Take-Off from a freight damaged reefer unit that was dismantled for parts. It was powered by a 4 cylinder 40hp engine. I don’t believe the refer unit was ever installed, it still has the factory plugs on the high side and low side.
On the tag is:Nippondenso6C-500 043500-2590R12 SUNIS04GS 2P0101