In the model number you posted instead of "O" between "W" & "B" suppose to be "0". Also according to GE you do not have to type this "zero" when you are going to lookup parts for this model.
Here are the break down diagrams and Replacement parts for GE JBP30WB1WW | AppliancePartsPros.com
- The part number for the 6" coil is AP3883459
- The part number for the 8" coil is AP3883460
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