GM Service Manual Online
For 1990-2009 cars only

Application

GM SPO Group Number

Exhaust Crossover Pipe (Diesel)

3.609

Exhaust Manifold Hanger

3.704

Exhaust Manifold Pipe

3.609

Exhaust Manifold Pipe Gasket

3.611

Exhaust Manifold Pipe Spherical Seal (Diesel)

3.611

Exhaust Muffler (w/Exhaust Pipe and Tailpipe)

3.701

Heated Oxygen Sensor

3.682