Yes, replaced both elements in my pitot tube with the help of a friend. Old heating elements came out without too much fuss. New ones went in and made a little "clicking" sound when they seated. Wired them in parallel so that if one element fails the other will still get power.
Mach Diamond... thank you for an outstanding and informative post. I'd been searching the web for info on these pitot tube heater elements without much luck. I waded all the way down through this thread to find your diamond of a post. Part numbers, instructions, gotchas... can't thank you enough.