GM Service Manual Online
For 1990-2009 cars only

GMSPO Group Numbers

Application

GM SPO Group Number

Automatic Transmission Engine Flywheel

0.666

Camshaft Bearing

0.539

Camshaft Timing Chain

0.724

Connecting Rod

0.603

Connecting Rod Bearing Kit

0.616

Coolant Radiator

1.219

Crankshaft Balancer

0.659

Crankshaft Bearing Kit

0.096

Cylinder Head

0.269

Cylinder Head Gasket

0.289

EGR Valve Gasket

3.68

Engine Block

N.S.

Engine Camshaft

0.519

Engine Cooling Thermostat

1.246

Engine Crankshaft

0.646

Engine Cooling Fan

1.055

Engine Front Cover

0.206

Engine Front Cover Gasket

0.207

Exhaust Manifold

3.601

Exhaust Manifold Gasket

3.27

Ignition Coil

2.17

Intake Manifold

3.265

Intake Manifold Gasket

N.S.

Manual Transmission Engine Flywheel

0.666

Oil Filter

1.836

Oil Filter Adapter

1.84

Oil Filter Adapter Gasket

1.84

Oil Level Indicator

1.516

Oil Level Indicator Tube

1.516

Oil Pan Kit with Gasket

1.429

Oil Pan Reinforcement

1.426

Oil Pump

1.652

Oil Pump Drive Shaft

1.639

Piston with Pin

0.629

Piston with Ring Kit

0.643

Radiator Air Deflector

1.272

Radiator Fan Shroud

1.277

Radiator Outlet Hose

1.173

Radiator Surge Tank

1.24

Spark Plug

2.27

Starter Motor

2.041

Throttle Body

3.725

Valve Lifter

0.459

Valve Lifter Guide

0.439

Valve Pushrod

0.426

Valve Rocker Arm Cover

0.386

Valve Rocker Arm Cover Gasket

0.423

Valve Spring

0.303

Water Pump Gasket

1.079

Water Pump Kit

1.069

Water Pump with Gasket

1.069