GM Service Manual Online
For 1990-2009 cars only

Application

GM SPO Group Number

Bolt (Catalytic Converter Hanger)

8.900

Catalytic Converter Gasket

3.690

Catalytic Converter Hanger

3.690

Catalytic Converter Hanger Insulator

3.690

Catalytic Converter Heat Shield

3.690

Catalytic Converter Nut

8.915

Exhaust Crossover Pipe

3.609

Exhaust Crossover Pipe Heat Shield

3.616

Exhaust Manifold Gasket

3.270

Exhaust Manifold Heat Shield, Lower

3.602

Exhaust Manifold Heat Shield, Upper

3.602

Exhaust Manifold Pipe Gasket

3.611

Exhaust Manifold Pipe Nut

3.613

Exhaust Manifold Pipe Stud

3.613

Exhaust Muffler

3.701

Exhaust Muffler Heat Shield

3.705

Heated Oxygen Sensor

3.682

Pop Rivet

8.967

Three-Way Catalytic Converter

3.685