First, I highly recommend Appliance Parts Pros. Tech advice was excellent and the part delivered quickly. The switch was easily installed by removing the back-plate of our Whirlpool ceramic top stove (about 13 years old) to expose the electrical wiring to the burner controls. After pulling the control knob off, two screws were removed that hold the switch in place and 5 wires disconnected, then reconnected in the same order to the new switch. The shaft of the switch is designed to fit two different sized control knobs. I had to remove the small spring clip then cut off a portion of the post and re-install the clip. The instructions included explained how to do this. This allowed my smaller control know to fit flush with the back of the stove. It was simple and worked well. I am not an electrician but this was an easy fix that solved my problem.