For 1990-2009 cars

Application | GM SPO Group Number
--- | ---
Coolant Outlet | 1.153
Coolant Pump Kit | 1.069
Coolant Pump Pulley | 1.062
Coolant Radiator | 1.219
Coolant Recovery Reservoir | 1.240
Coolant Recovery Reservoir Hose | 1.240
Electric Engine Cooling Fan Kit | 1.055
Electric Engine Cooling Motor Kit | 1.055
Engine Coolant Thermostat | 1.246
Low Engine Coolant Level Indicator Probe | 1.203
Radiator Air Side Baffle | 1.272
Radiator Filler Cap | 1.203
Radiator Inlet Hose | 1.159
Radiator Outlet Hose | 1.173