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Bard part number 9043-101 is a BCR18 natural gas pilot orifice used in Bard gas heating sections to meter the correct pilot gas flow for reliable ignition and a stable pilot flame. Because the pilot orifice size directly affects flame quality and safety shutdown performance, replacing a worn, restricted, or damaged orifice with the correct Bard OEM part helps restore proper pilot operation and supports consistent burner ignition. Verify your unit model and fuel type (natural gas) before ordering, and match the BCR18 specification to the equipment documentation to ensure proper fit and correct pilot performance.