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Bard part number 8552-050 is an OEM dual run capacitor rated 40/5 microfarad at 370 VAC, commonly used in Bard wall mount and packaged HVAC equipment to provide the correct phase shift and starting assist for the compressor and condenser fan motor. A weak or failed capacitor can lead to hard starts, overheating, nuisance trips, or a fan or compressor that will not run, so replacing it with the correct Bard-specified rating helps restore reliable operation and proper motor loading. Verify your unit data tag and wiring before installation, and match the microfarad rating exactly; Bard identifies 8552-050 as obsolete with the official replacement 8552-050BX.