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The Bard 5070-045BX Wheel Assembly ERW-2106 (boxed) is an OEM blower wheel assembly used in Bard wall-mounted HVAC equipment to move air smoothly through the unit for proper ventilation and heat transfer across the coil. A worn, damaged, or out-of-balance wheel can lead to vibration, reduced airflow, higher noise, and poor system performance, so replacing the complete wheel assembly is a practical fix when cleaning or rebalancing is not enough. As a genuine Bard replacement part, this wheel assembly is intended to match the original fit and rotation requirements when installed in the correct Bard model per the unit parts manual.
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.