For 1990-2009 cars

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
Crankshaft Balancer | 0.659
Crankshaft Bearing Kit | 0.096
Cylinder Head | 0.269
Cylinder Head Gasket | 0.289
EGR Valve Gasket | 3.680
Engine Camshaft | 0.519
Engine Cooling Manifold | 1.097
Engine Cooling Manifold Gasket | 1.097
Engine Cooling Thermostat | 1.246
Engine Crankshaft | 0.646
Engine Front Cover | 0.206
Engine Front Cover Gasket | 0.207
Exhaust Manifold | 3.601
Exhaust Manifold Gasket | 3.272
Intake Manifold | 3.265
Intake Manifold Gasket Kit | 3.270
Oil Filter | 1.836
Oil Filter Adapter | 1.840
Oil Filter Adapter Gasket | 1.840
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 Screen | 1.656
Oil Pump Screen Gasket | 1.657
Oil Pump Cover | 1.723
Piston with Pin | 0.629
Piston with Ring Kit | 0.643
Spark Plug | 2.270
Throttle Body | 3.335
Throttle Body Gasket | 3.336
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