I tried to just replace the igniter, but the screws were too far gone and the igniter mounting screw broke off in the burner assembly. So, I just replaced everything. The screws for this burner are now torx vs phillips (which is probably better because the old heads stripped pretty easily), so I ordered them as well to make the job easier as well as prepare for the fact that I have to do something with this burner about every 3 years. Parts were received the next day and the repair took 5 minutes