Here's how to easily identify it:
1. Look for the distributor: The distributor is usually located on the passenger side of the engine.
2. Identify the number one spark plug wire: The number one spark plug wire will be the one connected to the distributor cap closest to the front of the engine.
3. Locate the cylinder: Follow the number one spark plug wire to the cylinder it's connected to. This is cylinder number one.
Note: The specific location of the distributor may vary slightly depending on the year and model of the vehicle.