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Bard 5651-153BX - Expansion valve 3/8 x 3/8

Bard part number 5651-153BX is an OEM thermal expansion valve with 3/8 inch by 3/8 inch connections, used to meter refrigerant into the evaporator and maintain stable superheat for proper cooling performance on compatible Bard wall mount and other Bard HVAC equipment. If your system is showing symptoms like poor cooling, erratic suction pressure, or a coil that floods or starves, a correct-fit Bard valve like 5651-153BX helps restore designed refrigerant control and protects the compressor. Confirm model and serial compatibility before ordering, and have installation and refrigerant handling performed by a qualified HVAC technician since proper evacuation, charging, and leak checking are critical to reliable operation.


  • Technical Specifications
  • Product number: 5651-153BX
  • Manufacturer description: Expansion Valve 3/8" X 3/8" Boxed
  • HTS Code: "8415.90.8085"

  • Previous Versions
  • 5651-153 (Obsolete, superseded by 5651-153BX)

$136.00

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.