Answer Hello Luis, thank you for contacting Appliance Parts Pros. The manufacturer does not offer the natural gas orifices as individually serviceable parts or as a kit, to convert the unit back to natural gas you will need to replace each of the orifice holders: Right Rear orifice holder [WB28X20834] Right Front orifice holder [WB28X20832], this part is no longer available Left Rear orifice holder [WB28X20836] Left Front top burner assembly [WB16X20608] Center orifice holder [WB28X21077] 2 Inject Assembly [WB02X20722] for the upper oven bake, this part is no longer available Bake Elbow Assembly [WB28X20451] Broil Elbow Assembly [WB28X20619] Read More... Answered by AppliancePartsPros.com | Monday, January 6, 2025