* 2.0L Zetec: This was a four-cylinder engine.
* 1.8L Zetec: Another four-cylinder option, though less common.
* 2.0L Duratec (in some markets): A slightly different four-cylinder engine.
To know the exact engine size for a specific 2002 Ford Focus, you'd need to check the vehicle's documentation (like the owner's manual or the sticker on the driver's side doorjamb).
