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Bard 8552-001BX - 4 MFD 370V oval run capacitor

The Bard 8552-001BX is an OEM oval motor run capacitor rated at 4 microfarads (4 MFD) and 370 VAC, used to keep the condenser fan motor or blower motor running smoothly in many Bard wall-mounted HVAC units. A weak or failed run capacitor can cause hard starting, overheating, nuisance shutdowns, or a motor that hums but will not spin at proper speed, so replacing it with the correct MFD and voltage rating is critical for reliable operation. This genuine Bard replacement is intended to match the original electrical specifications for proper motor performance and long service life; always confirm the required capacitance and wiring layout against your unit data label or service manual before ordering.


  • Technical Specifications
  • Product number: 8552-001BX
  • Manufacturer description: Capacitor 4Mfd 370V 1-1/4" O Boxed
  • Weight: 0.300 lbs
  • HTS Code: "8532.10.0000"

  • Previous Versions
  • 8552-001 (Obsolete, superseded by 8552-001BX)

$16.00 *

* 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.