While primarily a York/Johnson Controls part

Is this a single or double inlet wheel

How do I identify if the 1740 PLA090 is the correct agitator for my unit

and 'HERM' to streamline wiring on the job site

Nordyne 663579R Distributor While primarily a York/Johnson ControlsIf you are servicing a Nordyne gas furnace or a split system evaporator coil, the Nordyne 663579R Distributor is the essential OEM replacement part for maintaining precise refrigerant metering. This unit is the direct replacement for 663579, ensuring a drop in fit without the need for field modifications. Designed as a refrigerant distributor assembly, it features two vent terminals and two gas terminals, facilitating balanced thermal expansion and