This place sells just the sensor for $49.95. Part #500400 1-800-819-3109. You might have an issue getting the old one off depending on what kind of torx screws they used. If they look like rivots then your going to have to either use a dremel or a haxsaw to cut a line through the head, just enough to be able to get to it with a flat tip screw driver. They screw right out.