I think they should fit any Model 3 with Tesla's 18" aero wheel, but not the 19" sport wheels. As you may know, the aero covers grab the spokes with little spring-loaded rollers, so they wouldn't fit another spoke design.
When I lost one of my aero covers in a puddle, I called Tesla for a replacement. She asked "which one". I said "front left". There was a long pause. Then I offered to take a right rear if it could be delivered faster.
She was not amused.
They aren't spring-loaded rollers, they are metal clips. One thing to note, when you remove the aero wheels make sure the clips are in place. Two of mine just fell out and several others weren't held in place correctly.