They share the same 1/2" NPT footprint and electrical specifications for 24V heating systems

and safety limit switches

This clip-on coil utilizes an actuator system 13

responsible for circulating conditioned air throughout the ductwork

Heil Quaker ICP 1171299 Housing 321702-401 They share the same 1/2"When dealing with draft inducer issues in Heil Quaker, Comfortmaker, or Tempstar furnaces, the Heil Quaker ICP 1171299 Housing is a critical structural component for maintaining proper flue gas velocity and pressure switch calibration. As a vent motor housing, this part is engineered to exacting OEM tolerances, ensuring a gas tight seal and rigid support for the blower wheel and motor assembly. A direct replacement for ICP 1171299, this housing