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Bard part number 139-180 is an OEM damper blade used in Bard wall-mount air conditioner fresh air intake damper assemblies, where it opens and closes to regulate outside air entering the unit during ventilation operation. A worn, bent, or sticking blade can lead to poor ventilation control, nuisance damper operation, and airflow issues, so replacing it with the correct Bard factory part helps restore proper damper movement and consistent intake airflow. Because damper blade configurations can vary by unit series and cabinet arrangement, confirm fit by matching the part number to your Bard model and the damper assembly diagram in the applicable service or replacement parts manual before ordering.
* Orders less than $50 may incure a minimum order fee.