For 1990-2009 cars

Application | GM SPO Group Number
--- | ---
A/C Refrigerant Pressure Sensor | 9.178
Accumulator | 9.195
Air Inlet Actuator | 9.280
Air Oultet - Defroster | 9.779
Air Distribution Duct-Auxiliary | 9.262
Blower Motor | 8.855
Compressor | 9.170
Compressor Hose | 9.220
Condenser | 9.190
Control Assembly | 9.273
Evaporator Core | 9.210
Evaporator Hose Assembly | 9.220
Expansion Tube | 9.213
HVAC Module Assembly | 9.000
Heater Core | 8.854
Heater Hose | 8.846