All engines and transmissions are stamped or laser etched with a partial Vehicle Identification Number (VIN), which was derived from the complete VIN. A VIN derivative contains the following nine positions.
Position Definition Character Description
1 GM Division Identifier 3 Oldsmobile
2 Model Year 3 2003
3 Assembly Plant 4 Orion, MI
4-9 Plant Sequence Number 000001 Plant Sequence Number