* Part numbers: Even if functionally identical, the part numbers assigned by Chrysler might differ due to manufacturing location or supplier changes.
* Minor variations in motor specifications: The fan motor's voltage, amperage, or even the number of blades could vary slightly. However, these differences would likely be insignificant in terms of functionality.
* Connector type: While less likely, there's a very small chance the electrical connector on the fan could have a minor variation.
In short: It's highly improbable that the fans would be drastically different. You can likely interchange them without issue. However, if you are ordering a replacement fan, it's best to use the VIN number to ensure you get the correct part for your specific vehicle. Using the VIN number is the most reliable method to guarantee compatibility.