Product review (5 stars): Right part, easy to replace. No service call from a technician required.
While the 3406109 isn't exactly the same as the 3406107, the extra wire in this part causes no problems and does no harm.  The whole replacement process took maybe 20 minutes and one screwdriver.  There is a video you can find on YouTube that shows how to do it.  The part arrived promptly - 4 days earlier than I had anticipated.  My dryer broke on Sunday just as I finished my weekly laundry.  I ordered the part that night and got it on Saturday, so I didn't miss a beat on the household chores. Fantastic price on the part and you can't beat free shipping! I would not hesitate buying this part.