SKU: 79310553152

40+10 uF MFD ±5% 370/440 VAC Round Run Start Capacitor - Fits HVAC, Air Conditioners, Heat Pumps

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Description

40+10 uF MFD ±5% 370/440 VAC Round Run Start Capacitor - Fits HVAC, Air Conditioners, Heat Pumps40+10 uf 40+10 MFD 370 440VAC 5% Volts Round Run Start Capacitor Key Features Dual capacitance rating: 40 microfarad (uF) for compressor, 10 uF for fan motor Dual voltage rating: 370 or 440 VAC Capacitance tolerance: 5% Operating frequency: 50 60 Hz Case: Round aluminum can with moisture and oil resistance Terminals: Three post design (C, FAN, HERM) with 1 4 inch male quick connects Operating temperature: 40C to 70C ( 40F to 158F) Safety protection:

40+10 uf 40+10 MFD 370-440VAC ±5% Volts Round Run Start Capacitor

Key Features

  • Dual capacitance rating: 40 microfarad (uF) for compressor, 10 uF for fan motor
  • Dual voltage rating: 370 or 440 VAC
  • Capacitance tolerance: ±5%
  • Operating frequency: 50/60 Hz
  • Case: Round aluminum can with moisture and oil resistance
  • Terminals: Three-post design (C, FAN, HERM) with 1/4 inch male quick-connects
  • Operating temperature: -40°C to 70°C (-40°F to 158°F)
  • Safety protection: 10,000 AFC (Ampere Fault Current) internal protector

Replaces / Cross-Reference Part Numbers

  • Replaces any dual round motor run capacitor with matching 40/10 uF and 370V or 440V specifications.
  • Check the label of your original capacitor for matching capacitance (e.g., 40/10, 40+10, 40+10 MFD) and voltage ratings.
  • Known to replace parts such as USA2232A and 40/10DVR.

Compatibility & Fitment

  • Designed for continuous duty in single-phase motor applications.
  • Common in residential and light commercial HVAC systems.
  • Suitable for use in:
    • Air conditioner condensing units
    • Heat pumps
    • Compressor motors
    • Condenser fan motors
    • Refrigeration systems

When to Replace

  • Compressor or fan motor fails to start or struggles to start.
  • A humming sound is audible, but the motor does not engage.
  • Capacitor casing is visibly swollen, bulging, cracked, or leaking fluid.
  • The unit starts but shuts down after a short period.
  • A capacitance test reading is outside the specified ±5% tolerance.

Installation Tips

  • Disconnect all electrical power to the main unit before beginning work.
  • Safely discharge the existing capacitor by shorting across the terminals with an insulated screwdriver (e.g., C to HERM, then C to FAN).
  • Verify the uF (MFD) and voltage ratings of the replacement capacitor match the component being replaced. The voltage rating can be equal to or higher, but never lower.
  • Document or photograph the wire connections to each terminal (C, FAN, HERM) before disconnecting.
  • Ensure the new capacitor is physically secured with the original mounting bracket.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 79310553152

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tavona givens
Pawtucket, US
★★★★★ 5
Good fitment
Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Chrome
Good fitment some these always stay in place when opening/closing the hood compared to other aftermarket grills
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Reviewed in the United States on May 22, 2025
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Isaac Juha
Chelsea, US
★★★★★ 2
Too big
Size: Compatible with 2003-2006 BMW E46 3-Series Coupe, Color: Glossy Black M-Color, Size: Compatible with 2003-2006 BMW E46 3-Series Coupe, Color: Glossy Black M-Color
Ordered for a 03 325ci it was huge looks like an m5 grill. Nice quality good design but too big.
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Reviewed in the United States on December 20, 2023
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Michael
Port Orchard, US
★★★★★ 5
Easy install
Color: Single Slat Gloss Black, Size: 2012-2018 F30, Color: Single Slat Gloss Black, Size: 2012-2018 F30
Fixed my busted grille and gave the car a newer look. 2014 320i
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Reviewed in the United States on May 2, 2026
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Sal
Los Angeles, US
★★★★★ 5
Direct Fit and good quality
Color: Single Slat Gloss Black, Size: 2002-2005 E46
For anyone that has owned an E46 knows that even the stock kidney grills are brittle plastic. This aftermarket is about the same quality as stock. It is a direct fit and has the clips where they are supposed to be to keep them in place. The look is also pretty nice. This one is all black and actually looks nice on my black E46. I would recommend especially for the price and shipping was fast.
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Reviewed in the United States on August 29, 2025
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Christian Burt
Dallas, US
★★★★★ 5
Easy install
Color: Single Slat Gloss Black, Size: 2023+G20
Fits well. Made of plastic but very easy install.
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Reviewed in the United States on March 19, 2026

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