I need to convert it from propane to natural gas.
Answer Ren, you'll need conversion kit part number 814390 to convert your model back to NG. Unfortunately, this item has been discontinued with no further replacements or cross references available and our company is unaware of any other available sources. Sorry about that!
I need to convert my stove from LP to natural gas. What do I buy?
Answer Ruth, you'll need the orifices part numbers 8273065 for the left front/rear burner, 8273065 for the right front burner, and 8273067 for the right rear burner. Thanks.