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Bard 8552-090BX - Dual run capacitor 20/5 MFD 440V

Bard 8552-090BX is an OEM dual run capacitor rated 20/5 MFD at 440V, used to provide the correct phase shift and stored energy needed for reliable compressor and condenser fan motor operation in Bard wall mount air conditioners and heat pumps. A weak or failing run capacitor can cause hard starting, nuisance trips, overheating, and reduced cooling performance, so replacing it with the correct microfarad ratings and voltage class is critical for proper motor amperage and long-term reliability. This part is commonly listed as a round run capacitor and is often shown as replacing Bard 8552-090, making it a straightforward match when the unit data plate, wiring diagram, or service manual calls for the 20/5 at 440V specification.


  • Technical Specifications
  • Product number: 8552-090BX
  • Manufacturer description: Capacitor 20/5Mfd 440V 2"R Boxed
  • Weight: 0.550 lbs
  • HTS Code: "8532.25.0040"

  • Previous Versions
  • 8552-090 (Obsolete, superseded by 8552-090BX)

$31.00 *

* 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.