To find the serial number of the 5.2L engine in *your* Jeep Grand Cherokee, you will need to:
* Consult your vehicle's documentation: Your owner's manual might indicate where the engine serial number is located.
* Look on the engine block: The serial number is usually stamped on a relatively flat surface of the engine block. It might be near the oil filter, near the starter motor, or on a side of the engine. You might need a flashlight and possibly even a mirror to see it clearly.
* Check the engine compartment: Look for any metal tags or plates affixed to the engine or its surrounding components; the serial number might be on one of these.
If you can't locate it yourself, a mechanic or Jeep dealership will be able to find it for you. They have the expertise and often specialized tools to identify these numbers easily.