I removed the burners and top cover of the range. I pulled the range from between my cabinets so I could access the wires that go to the igniters. I removed the two screws from the igniter bracket and pulled the broken igniter up from the mounting frame. I cut the wire from the old igniter to make it easier to remove the old wire and route the new igniter wire to the rear of the range. The new igniter had the exact same plugin which made installation a snap. I reassembled the range top top and tested the new igniter. Works perfectly. It took less than 30 minutes.
The hardest part was taking out original light bulb because screws on shield where hard to unscrew after all this years . The old bulb vent out leaving neck in socket. It took narrow electrical pliers to get neck out .The generic appliance bulb did not fit and had aluminum neck ,not recommended for brass sockets in ovens.Putting new light bulb in was not the problem.
I pulled down the wire around the glass cover. . . Released on end of the wire from its holder being careful to not let the glass cover drop. Unscrewed the bulb and replaced with replacement. Easy, easy.