For 1990-2009 cars

# Info - Polymer Service Pistons

Subject: | Polymer Service Pistons

Models: | 1996 Buick Regal

| 1996-98 Buick Skylark

| 1996-99 Buick Century

| 1996 Chevrolet Beretta, Corsica

| 1996-99 Chevrolet Lumina, Monte Carlo

| 1997-99 Chevrolet Malibu

| 1996-98 Oldsmobile Achieva

| 1997-99 Oldsmobile Cutlass

| 1996-98 Pontiac Grand Am

| 1996-99 Pontiac Grand Prix

| with 3.1 L Engine (VIN M -- RPO L82)

This bulletin is being revised to clarify the models and parts information. Please discard Corporate Bulletin Number 01-06-01-010A (Section 06 -- Engine).

A service piston with a polymer coated piston skirt is available for the above engine. Polymer pistons should be used in these applications any time piston replacement is necessary.

Notice: Do not install pistons in model years other than listed in the parts table below. Damage to the piston, cylinder block or cylinder head may occur if the wrong piston is installed.

Refer to Corporate Service Bulletin Number 01-06-01-002 for revised piston pin installation procedure.

### Parts Information

Part Number | Description | Model Years | Qty
--- | --- | --- | ---
24508726 | L82 3.1 Piston Assembly | 1996-99 | 1

Parts are currently available from GMSPO.