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Bard part 9022-046 is an OEM nozzle line electrode assembly (NL47YH) used on Bard oil-fired heating applications to deliver consistent ignition at the burner head by positioning the oil nozzle line and electrodes in the correct alignment. A worn or damaged nozzle line electrode assembly can lead to hard starts, nuisance lockouts, or unstable flame, so replacing it with the correct Bard-specified assembly helps restore reliable light-off and proper combustion performance. Confirm compatibility by matching your unit and burner model information to the Bard service literature before ordering, since electrode geometry and burner head configurations can vary by series.