We ordered a GE gas cooktop 2 burner module to replace the grill on the lefthand side of a cooktop we inherited (model JGP389WEVWW). The gas cooktop only had 2 burners with a grill, and since we want 4 burners, we called the GE Parts department to check on availablity of the 2 burner module. They said it was available and we ordered it. Since it was on backorder we went ahead and converted our electric cooktop to gas, after receiving confirmation from GE that the new gas module would be sent. GE sent part# JXGB79W which is supposedly the correct part number for our cooktop, however this part supercedes the former part# JXGB89W. The problem is, the new part number does not fit into the cooktop--the striker is in the wrong position. So although we ordered the cooktop, and had our electric cooktop converted to gas based on the information we were given, the new part does not fit. It took over 3 hours on the phone with GE today to discover that the new part number superceding the old won't work. I have looked online for the correct new part, checked Craig's List and Ebay, and I just can't find JXGB89W. It is appalling to me that GE didn't warn me that this superceded part may not fit our appliance -- we converted to gas before receiving the part from GE, which apparently was a huge error in judgment. I spoke with Customer Relations, the Parts Department, Credit and Returns, The GE Answer Center, and the process was a complete fiasco -- it was exceedingly difficult to get to the right people and try and negociate which direction I should go. It was a lady in Credit and Returns who was able to finally explain to me that a part that supercedes an old part may or may not fit! It is truly unconscionable to me how GE could allow people to order parts without warning them first that the part might not work. Why wasn't I forewarned? Had I known this may occur, I would not have ordered the 2 burner module. Are there any options available? I am so darn mad I cannot even see straight... Thanks for any help you can offer.