Engine Visual Identification

Engine Identification





* The Vehicle Identification Number (VIN) Derivative is located on the left side rear of the engine block (1) or on the right side rear (2) and typically is a 9 digit number stamped or laser etched onto the engine at the vehicle assembly plant.

- 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 VIN.





* Engines built at the Romulus engine plant have the engine identification number located at the right front top of the engine block.

- The first digit (1) is the source code.

- The second and third digits (2) are the month of build.

- The fourth digit (3) is the hour of the build.

- The fifth and sixth digits (4) are the date of build.

- The seventh, eighth, and ninth digits (5) are the broadcast code.