GM Service Manual Online
For 1990-2009 cars only

Application

GM SPO Group Number

Blower

8.857

Blower Motor (w/Impeller)

8.855

Blower Motor Resistor

8.855

Blower Motor Switch

8.852

Ducts

9.262

Heater Case

8.854

Heater Control Cables

9.787

Heater Control Unit

8.849

Heater Control Unit Face Plate

9.279

Heater Core

8.854

Heater Hoses

8.846