That part is the stat that brings on the cooling fan which you would of seen in the centre.this has to operate to stop the oven overheating and cutting out ever 20mins or so.replacement comes with 4 wires attached to it (2 blue,2 white).hopefully the wires are still attached. 1 long blue goes to fan for sure.1 wire goes to clock unit and 2 go to the last contacts on the oven selector switch.
ck, February 2009