The spares Judge mentioned should work. These things do break. To remove your sliding drawer, when fully extended, you will find two plastic levers inline with the drawer on the inner slide. One goes up when pushed, and the other one down. Then you can slide the drawer out. If the female portion, usually on the frame of the coach, which has a lever, is visible and closed, then odds are its broken. I have tried a several times to pry open and it rarely works. It is a pretty easy swap, BUT, these do come in different sizes and if you try to ah.. "interbreed" them.... they usually will not "mate" up. Good news is the screw holes usually do. Just swap out male and female portion from same order of spares.
Overall not a tough job at all.