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The Bard 917-0312BX coated coil assembly (boxed) is an OEM replacement heat exchange coil designed for select Bard wall-mount HVAC units to restore proper refrigeration performance when an existing coil is leaking, restricted, or corrosion-damaged. This service coil is built to Bard fit and connection standards so a qualified technician can install it with correct airflow alignment and refrigerant circuit compatibility, helping the system return to stable capacity, efficiency, and temperature control. Because coils are model and revision specific, confirm the part number against your unit data plate and Bard parts list before ordering to ensure an exact match.
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.