No, the publisher will choose the illustrator. Writers do not need to find an illustrator or offer illustration suggestions. If your story will be unclear without illustrations—you have included pages where the story is told entirely by the picture, for instance—include illustration notes within your text.
How to Write Scientific Fiction: Analyzing Michael Crichton’s Sphere
In this post, Dustin Grinnell explores the tactics that author Michael Crichton used to craft realistic science fiction within one of his most popular novels, 'Sphere.'