Where does this part go: Webasto?

[opus]

I used to be able to remember where things went.  Think I need to take pix from now on.  Doesnt this part go in the head by the electrodes, held on by a black screw that holds head together?

[opus]

Its the preheat and it goes on the back wall.  Had to dig deep, but I found it. 

[gumpy]

Glad you figured it out, cause I couldn't make heads or tails out of the photo.