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Bard part number 8105-078BX is a genuine OEM 1/3 HP PSC motor rated for 208/230V with clockwise rotation, commonly used to drive the fan in Bard wall mount HVAC equipment. If your unit is squealing, hard starting, tripping on thermal, or showing weak airflow, replacing the motor with the correct Bard-spec motor helps restore proper air movement and protects the compressor and coils from performance issues caused by low airflow. For best fit and safe installation, verify the required RPM and mounting details against your Bard model and serial, since motor frame, shaft length, and wiring can vary by unit, even when horsepower and voltage 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.