GM Service Manual Online
For 1990-2009 cars only

GM SPO Group Numbers

Application

GM SPO Group Number

Adjuster

11.561

Lumbar Bladder

11.378

Lumbar Pump

11.378

Reclining Handle

11.377

Seat Adjuster Cable

11.377

Seat Back Frame

11.373

Seat Back Release Cable

11.390

Seat Cover

14.800

Side Trim Panel

11.377

Switch

11.558