I am replacing the component (igniter) show in the link http://www.mentz50th.com/igniter.jpg, in a '91 Accord distributor. A poster here was kind enough to send me the unit seen on the right in the photo. The unit in the left is all green, has an ID number of E12-303, and another ID number below which reads 4518. The new piece, from a '91 Accord reads E12-302 and 3918, and is partly black. Safe to try the replacement? I have already attached the new component to a silver colored backing (which I need to better align). - Phil