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Bard 553-666-4BX - Vent option door assembly

Bard part 553-666-4BX is an OEM vent option door assembly used on select Bard wall-mounted HVAC units to properly close off and control the outside air ventilation opening when vent options are installed. As an EXTERIOR CABINET COMPONENT, it is finished in Buckeye Gray textured enamel to match factory units, and it helps maintain correct cabinet sealing and ventilation operation for dependable unit performance in harsh outdoor conditions. Ensure this matches the color of your Bard unit for seamless replacement. Exterior panels with enamel cabinet paint coating have been tested to withstand over 1000 hours of salt spray tests per ASTM B117-03. This listing is for the panel only. Reuse your existing fasteners, clips, and hardware.


  • Technical Specifications
  • Product number: 553-666-4BX
  • Manufacturer description: Vent Option Door Assy-Gr-Boxed
  • HTS Code: "8415.90.8085"

$151.00

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.