Part number for heater core switch under the hood?

[Kejtar]

Damn thing broke in my dad's 94 XJ.

 

[Kejtar]

Disregard... Found it... Damn plastic pos

 

[cruiser54]

eliminate it!! The heater valve.

 

[lawsoncl]

X2. Eliminate the heater control valve. Order a set of heater hoses for the 97+ Cherokees which don't have that stupid failure prone plastic valve. While you've got it apart, flush the heater core back and forth until it runs clean.

Part numbers and a few pictures here:
https://www.cherokeeforum.com/f2/removal-hcv-250334/