GM Service Manual Online
For 1990-2009 cars only

Object Number: 948122  Size: SH

The Vehicle Identification Number (VIN) Derivative is located on the right front side of the engine block (1) and is a nine digit number stamped or laser etched onto the engine at the vehicle assembly plant. If reading the identification number the following information can be obtained:

    • The first digit identifies the vehicle division.
    • The second digit is the model year.
    • The third digit identifies the assembly plant.
    • The fourth through ninth digits are the last six digits of the Vehicle Identification Number (VIN).

Engine Verification

The engine verification label is placed in two locations on the right side of the engine.


Object Number: 927755  Size: SH

The engine front cover has an engine verification label (1) and the front of the right camshaft cover has a traceability label (2).


Object Number: 948124  Size: SH

The rear of the right camshaft cover has an engine verification label (1).


Object Number: 945245  Size: SH

The Vehicle Identification Number (VIN) Derivative is located on the block and is a nine digit number stamped or laser etched onto the engine at the vehicle assembly plant. If reading the identification number the following information can be obtained:

    • The first digit identifies the vehicle division.
    • The second digit is the model year.
    • The third digit identifies the assembly plant.
    • The fourth through ninth digits are the last six digits of the Vehicle Identification Number (VIN).

Engine Verification Label

The engine verification label is placed in two locations on the engine.


Object Number: 945249  Size: SH

One label is located on the left side of the engine front cover below the exhaust camshaft position sensor.


Object Number: 945252  Size: SH

Another label is located on the rear of the right cylinder head.