Product review (5 stars): Busted on Christmas Eve. Problem solved!
I own a GE JGSP42SET1SS gas range/oven. On Christmas Eve, as I was about to roast a $150 dry aged prime rib roast the darn thing broke!  I surmised it could be the igniter.  As a quick diagnostic, I swapped the igniter from the broiler and put it into the oven slot.  This made the oven work so I knew the igniter was blown.  As a second diagnostic, I used a voltometer on the presumed busted igniter and there was NO continunity thus proving beyond any doubt that it was the broken part. I ordered this part shipped and sold by Amazon. It was a genuine GE product, sealed and everything. It worked great. Would recommend buying from Amazon directly as opposed to another seller on Amazon since other reviewers complain about getting knock off versions.