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Dual Run Capacitor 45/7.5 MFD 5 1/4 H

Dual Run Capacitor 45/7.5 MFD 5 1/4 H

Best price now

$6.63at HVACDiscounters.comChecked 10 h ago

46% under what the other stores charge

Compared across 14 stores. Prices are checked against each store and labelled with when.

Visit HVACDiscounters.com

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Price facts

  • Lowest price today: $6.63 at HVACDiscounters.com (checked Nov 13, 2026).
  • Checked at 14 stores.

    • Our take on the Dual Run Capacitor 45/7.5 MFD 5 1/4 H

    A round dual run capacitor rated 45/7.5 microfarads at 440V AC, with an aluminum case and an overall height of 5 1/4 inches. It is a replacement part for air conditioner and heat pump condenser units, where one capacitor runs the compressor and the fan motor. The dual-section design replaces two separate capacitors and saves wiring space. Buyers should match the microfarad ratings, voltage and case dimensions to the failed part before ordering.

    Best forAC and heat pump condenser repairsReplacing a failed compressor/fan capacitorHVAC technicians stocking service partsHomeowners matching an exact original rating
    Pros
    • Two ratings in one can: 45 MFD and 7.5 MFD
    • 440V AC rating suits most residential condenser units
    • Aluminum case resists corrosion
    • Round 5 1/4 in case fits common mounting brackets
    • Fewer parts and wires than two separate capacitors
    Cons
    • Must match microfarad ratings exactly; wrong values strain the compressor
    • No discharge resistor or bleed-down built in
    • No mounting strap or terminals included
    • Fails early if the system runs hot or the voltage is unstable

    Dual Run Capacitor 45/7.5 MFD 5 1/4 H prices at every store

    • HVACDiscounters.comNew

      In stock

      $6.63Checked 10 h ago
      Visit HVACDiscounters.com
    • Total Home SupplyNew

      In stock

      $17.00Free shippingChecked 10 h ago
      Visit Total Home Supply
    • SupplyHouse.comNew

      In stock

      $10.09+ $6.95 shippingChecked 10 h ago
      Visit SupplyHouse.com
    • Ace HardwareNew

      In stock

      $31.99Free shippingChecked 10 h ago
      Visit Ace Hardware
    • HVAC Wholesale DirectNew

      Availability unknown

      $7.19Checked 10 h ago
      Visit HVAC Wholesale Direct
    • McCombs SupplyNew

      Availability unknown

      $10.21Checked 10 h ago
      Visit McCombs Supply
    • AmazonNew

      Availability unknown

      As an Amazon Associate, Deal.ai earns from qualifying purchases.

      $10.99Checked 10 h ago
      Visit Amazon
    • Edmondson SupplyNew

      Availability unknown

      $11.10Checked 10 h ago
      Visit Edmondson Supply
    • Skip The WarehouseNew

      Availability unknown

      $12.28Checked 10 h ago
      Visit Skip The Warehouse
    • eBayNew

      Availability unknownSold by boxlun

      $14.30Checked 10 h ago
      Visit eBay
    • Max WarehouseNew

      Availability unknown

      $19.49Checked 10 h ago
      Visit Max Warehouse
    • Mar Vac ElectronicsNew

      Availability unknown

      $25.59Checked 10 h ago
      Visit Mar Vac Electronics
    • DoorDashNew

      Availability unknownSold by ACE Hardware US

      $34.99Checked 10 h ago
      Visit DoorDash
    • Lowe'sNew

      Out of stock

      $33.48Free shippingChecked 10 h ago
      Visit Lowe's

    Store links may earn us a commission.

    Dual Run Capacitor 45/7.5 MFD 5 1/4 H price history

    Lowest price we've seen: $6.63 on Nov 13 at HVACDiscounters.com. Tracked across 14 stores since Nov 13.

    About the Dual Run Capacitor 45/7.5 MFD 5 1/4 H

    This is a round dual run capacitor for motors. It has a microfarad rating of 45/7.5 MFD and operates at 440V AC.

    The case is made of aluminum. Overall height is 5 1/4 inches.

    Type
    Motor dual run capacitor
    Shape
    Round
    Voltage
    440V AC
    Capacitance
    45/7.5 MFD (microfarads)
    Height
    5 1/4 in overall
    Case material
    Aluminum

    Questions and answers

    What does 45/7.5 MFD mean?
    It is a dual capacitor with two sections: 45 microfarads for the compressor (HERM) and 7.5 microfarads for the fan motor (FAN). The common terminal is shared.
    Will it fit my air conditioner?
    Only if your unit calls for 45 and 7.5 microfarads at 440V AC and the 5 1/4 in round case fits the bracket. Check the label on the old capacitor first.
    Can I use a higher voltage rating?
    Yes. A capacitor rated at a higher voltage, such as 440V or 370V, works in place of a lower one as long as the microfarad values match.
    Does it come with mounting hardware?
    No. The capacitor is the part only; straps, brackets and terminal connectors are sold separately.
    What happens if I install the wrong microfarad rating?
    The compressor or fan motor can overheat, run weakly or fail. Match both ratings to the original part.
    Where is the Dual Run Capacitor 45/7.5 MFD 5 1/4 H cheapest?
    At HVACDiscounters.com, for $6.63, 46% under what the other stores charge, as of our latest check.
    Where can I buy the Dual Run Capacitor 45/7.5 MFD 5 1/4 H?
    14 stores we checked sell it, including HVACDiscounters.com, Amazon, HVAC Wholesale Direct, SupplyHouse.com, McCombs Supply.

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    Stores we've priced the Dual Run Capacitor 45/7.5 MFD 5 1/4 H at

    • Ace Hardware deals and prices
    • Champs Sports deals and prices
    • Lowe's deals and prices

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