I got the Head Motor/Gearbox from the U.S.and the coil from Mark.C ,  When I got my PZ the wiring from the Jaw coil was hacked and the old head motor was stufed. Replaced the opto board and the head control board to make it trouble free.
Since that picture of my head motor was taken I compleatly changed the wiring as the pink and red wire had a short. Top Game