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Bard 139-441BX - Actuator Arm

The Bard 139-441BX actuator arm (boxed) is an OEM mechanical linkage used to transfer motion from an actuator to the connected damper or assembly inside select Bard wall mounted HVAC equipment, helping the unit open and close as commanded for proper ventilation and airflow control. When an actuator is operating but the damper is not moving smoothly, binds, or will not fully travel, replacing a worn or bent arm can restore reliable movement and prevent strain on the actuator and related hardware. Because linkage geometry matters for full stroke and correct positioning, confirm the part number against your Bard model and serial information before ordering to ensure proper fit and travel.


  • Technical Specifications
  • Product number: 139-441BX
  • Manufacturer description: Actuator Arm - Boxed
  • HTS Code: "8415.90.8085"

$81.00

What does the "BX" suffix mean?

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.