This is a York engine-driven refrigeration compressor with a dual v-belt 12-volt clutch.
It includes the back valves (aka "Roto-valves") with caps (new or rebuilt compressors do not include the valves).
It will run either clockwise or counterclockwise (the top plate is rotated 180 degrees if the shaft rotation is reversed.
It ran just fine when I switched over to dual electric refrigeration system and got rid of my holding plates.
Also includes a mounting foot and a stainless steel belt tensioner which is worth $50 by itself.
Will take $50 plus shipping for it all.
You can pick-up in Melbourne, FL if you like.