GM Service Manual Online
For 1990-2009 cars only

LX9, 3.5L Engine VIN Derivative Location

The Vehicle Identification Number - VIN derivative (1) for 3.5L LX9 is stamped or laser etched on the left side rear of the engine block. The Vehicle Identification Number - VIN derivative is nine digits long and can be used to determine if a vehicle contains the original engine.


Object Number: 909508  Size: SH
    • The first digit identifies the division.
    • The second digit identifies 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.

L61, 2.2 L Engine VIN Derivative Location


Object Number: 741597  Size: SH

The engine code letter is the eight digit of the VIN, which identifies the engine.

The engine code letter is the eight digit of the VIN, which identifies the engine.

Stick-on labels attached to the engine, laser etching, or stamping in the engine block indicate the engine unit number/build code date.

The primary location for the engine ID is on front of the rocker cover (1).

The primary (2) and secondary (3) hand stamp locations for the Vehicle Identification Number (VIN).