I replaced mine a while back. It is a pain to do, and if you are not careful you will break the plastic tabs that actually hold the 2 halves of the switch together. The buld you need you can actually find listed as being for a Ford Contour cruise control switch. I do not recall the part number, but I do know that is how I found the right bulb. Next time I will replace the switches instead of attempting to change the bulb though!! If you do attempt it reember to pull the negative battery cable. There is an airbag in that same area. lol!!