50000816 Vermont Castings Ignitor Assembly

parts for 9055-3a can i get these parts

I have 3 burners with 3 ignitor electrodes and 1 ground wire to frame. Connectors on ignitor assembly 1 thru 4 which is ground?

The igniter that arrived is intact, but has no click and makes no spark. I ordered a second but it also does not ignite. Did I get 2 bad igniters?

Where can i get a new igniter (part#50001482 for my vermont castings grill model cf9030?