The eighth character in the Vehicle Identification Number (VIN) identifies the engine. Adhesive-backed labels attached to the engine, laser etching or stampings on the engine block indicate the engine unit number/date code. All engines are stamped with a VIN derivative. For more information on the VIN derivative, refer to VIN Derivative .
3.8L Engine VIN Derivative Location
The primary location (1) of the VIN derivative for the 3800 L36 engine is in the center of the LH rocker arm or LH side of the engine in the oil pan rail area of the engine.
3.8L Engine VIN Derivative Location
The secondary location (1) of the VIN derivative for the 3800 L36 engine is on the engine block below the water pump.
3.4L Engine VIN Derivative Location
The primary (1) and optional (2) location of the VIN derivative for the 3400 LA1 engine is on the lower left front transaxle mounting surface.
3.4L Engine Identification Location
The primary location (1) of the Engine ID for the 3400 (LA1) engine on top of the RH rocker arm cover or front of RH oil pan rail. The optional (2) location is on lower left front transaxle mounting surface.
