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Bard 543-172-4BX is an OEM heater access cover assembly for Bard wall mounted HVAC units that use electric heat kits, providing a secure cabinet opening cover that protects internal heater components while still allowing service access when technicians need to inspect, troubleshoot, or replace heater elements and wiring. As an exterior cabinet component, it is finished in Buckeye Gray textured enamel to match factory units, and you should 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.
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.