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Bard 9043-063BX - Natural Gas Burner Orifice #43

The Bard 9043-063BX is an OEM natural gas burner orifice sized #43, used in Bard gas heat sections to meter the correct amount of fuel into the burner for stable ignition and proper combustion. A correctly sized orifice is critical for reliable heating performance and to help prevent issues like hard starts, poor flame characteristics, or nuisance lockouts caused by improper gas flow. Because burner orifices are application and fuel specific, confirm the required orifice size and quantity for your exact Bard model and serial number before ordering, and have gas train work performed and leak tested by a qualified technician.


  • Technical Specifications
  • Product number: 9043-063BX
  • Manufacturer description: Burner Orifice-Nat #43 - Boxed
  • Weight: 0.100 lbs
  • HTS Code: "8416.90.0000"

  • Previous Versions
  • 9043-063 (Obsolete, superseded by 9043-063BX)

$25.00 *

* Orders less than $50 may incure a minimum order fee.

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.