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Bard part 3003-127BX is an OEM control panel wire harness used in Bard wall mounted packaged air conditioner control compartments, providing the correct pre-terminated connections between control components to keep the unit operating as designed. A factory harness helps restore reliable electrical continuity after heat damage, corrosion, or service work, and it reduces wiring errors compared with field-built replacements. Match this harness to your unit model and wiring diagram to confirm connector style and lead routing before installation, then transfer one connection at a time to maintain correct control and safety circuit operation.
Bard uses suffixes like "BX" to manage parts internally. These do not change the physical form or function of the part.
A part number ending in "BX" simply means it is packaged in a box for shipping, rather than for internal assembly use.
Example: 8406-142BX is physically identical to 8406-142.