For 1990-2009 cars

Application | GM SPO Group Number
--- | ---
Cap, Radiator Surge Tank | 1.240
Cover, Water Pump (LD9) | 1.073
Fan Kit, Electric Engine Cooling | 1.055
Hose, Radiator Inlet | 1.159
Hose, Radiator Outlet | 1.173
Hose, Radiator Surge Tank Inlet (L82) | 1.240
Motor Kit, Electric Engine Cooling Fan | 1.055
Outlet, Coolant | 1.153
Pipe, Engine Coolant Air Bleed (LD9) | 1.097
Pipe, Radiator Outlet (LD9) | 1.173
Pipe, Radiator Surge Tank Inlet (L82) | 1.240
Pump, Coolant | 1.069
Radiator, Coolant | 1.219
Shroud Kit, Electric Engine Cooling Fan | 1.277
Tank, Radiator Surge | 1.240
Thermostat, Engine Coolant | 1.246