GM Service Manual Online
For 1990-2009 cars only

GM SPO Group Numbers 3.1L SPO

3.1L SPO

Application

GM SPO Group Number

Catalytic Converter Heat Shield

03.690

Exhaust Crossover Pipe

03.609

Exhaust Crossover Pipe Heat Shield

03.616

Exhaust Muffler

03.701

Exhaust Pipe

03.609

Exhaust Pipe Front Heat Shield

03.616

Exhaust Pipe Hanger

03.616

Exhaust Pipe Heat Shield

03.616

Heated Oxygen Sensor

03.682

Three Way Catalytic Converter

03.685

Three Way Catalytic Converter

03.609

GM SPO Group Numbers 3.4L SPO

3.4L SPO

Application

GM SPO Group Number

Catalytic Converter Heat Shield

03.690

Exhaust Crossover Pipe

03.609

Exhaust Muffler

03.701

Exhaust Pipe

03.609

Exhaust Pipe Front Heat Shield

03.616

Exhaust Pipe Hanger

03.616

Exhaust Pipe Heat Shield

03.616

Heated Oxygen Sensor

03.682

Three Way Catalytic Converter

03.685

Three Way Catalytic Converter

03.702

GM SPO Group Numbers 3.8L SPO

3.8L SPO

Application

GM SPO Group Number

Catalytic Converter Heat Shield

03.690

Exhaust Crossover Pipe

03.609

Exhaust Crossover Pipe Heat Shield

N.S.

Exhaust Muffler

03.701

Exhaust Pipe

03.609

Exhaust Pipe Hanger

03.616

Exhaust Tail Pipe

03.705

Heated Oxygen Sensor

03.682

Three Way Catalytic Converter

03.685