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The Bard 5651-144BX Integrated Furnace Control (boxed) is an OEM control board used in Bard gas furnace equipment to manage the furnace operating sequence and safety functions, helping the unit respond correctly to thermostat calls and run reliably through ignition and heating cycles. This part is the manufacturer-updated direct replacement for older Bard 5651-144 controls, so it is commonly selected when the original board has failed, is damaged, or is no longer available. To ensure proper fit and correct operation, match the part number exactly and confirm compatibility with your Bard furnace model and wiring before installation.
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.