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Bard 552-331-4BX - Blower Door Assembly

The Bard 552-331-4BX blower door assembly is an OEM exterior cabinet component that restores the correct sealed access to the blower section on compatible Bard wall-mount HVAC units, helping maintain proper airflow control and service access while protecting internal components from weather exposure. This assembly is finished in Buckeye Gray textured enamel to match factory units, and the painted cabinet coating is designed to withstand over 1000 hours of salt spray testing per ASTM B117-03. Ensure this matches the color of your Bard unit for seamless replacement. This listing is for the panel only. Reuse your existing fasteners, clips, and hardware.


  • Technical Specifications
  • Product number: 552-331-4BX
  • Manufacturer description: Blower Door Assy -Gray - Boxed
  • Weight: 14.300 lbs
  • HTS Code: "8415.90.8085"

  • Previous Versions
  • 552-331-4 (Obsolete, superseded by 552-331-4BX)
  • S552-331-4 (Obsolete, superseded by 552-331-4)

$253.00

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.