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Bard part number 127X210BX is an OEM heater control base with a right-hand orientation used in Bard wall-mount HVAC electric heat control assemblies. This component serves as the mounting and connection foundation for the heater control devices, helping keep the heater package wired and supported correctly so the unit can stage and operate electric heat as designed. When a control base is cracked, heat-damaged, or has compromised terminals, replacement helps restore safe, reliable heater operation and prevents intermittent heat calls. Match the part number and orientation to your unit’s parts list before ordering, since right-hand and left-hand bases are not interchangeable in many heater kits.
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.