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Description
40 uF MFD 370/440 VAC CBB65A Round Run Start Capacitor - Fits AC Motor Run, Fan Start, Heat Pump40 uF MFD 370 440VAC Round Run Start Capacitor Key Features Capacitance: 40 Microfarad (F MFD) Tolerance: 5% to 6% Voltage Rating: Dual 370V 440V AC Frequency: 50 60 Hz Shape: Round Construction: Aluminum case, steel cover Terminals: 1 4 inch male quick connect Operating Temperature: 40 C to 85 C ( 40 F to 185 F) Safety Standard: UL recognized, 10,000 AFC protected Dielectric: Non PCB, metalized polypropylene film Replaces Cross Reference Part Numbers
40 uF/MFD 370-440VAC Round Run Start Capacitor
Key Features
- Capacitance: 40 Microfarad (µF/MFD)
- Tolerance: ±5% to ±6%
- Voltage Rating: Dual 370V / 440V AC
- Frequency: 50/60 Hz
- Shape: Round
- Construction: Aluminum case, steel cover
- Terminals: 1/4 inch male quick-connect
- Operating Temperature: -40° C to 85° C (-40° F to 185° F)
- Safety Standard: UL recognized, 10,000 AFC protected
- Dielectric: Non-PCB, metalized polypropylene film
Replaces / Cross-Reference Part Numbers
- Replaces any round single-value capacitor with a 40 MFD rating and a voltage of 370V or 440V.
- Compatible with industry part numbers including CBB65, 97F series, and others with matching specifications.
- Substitutes for capacitors from multiple brands including Genteq, MARS, Packard, and Aerovox.
Compatibility & Fitment
- Used in single-phase motor applications including HVAC compressors, condenser fan motors, furnace blowers, and heat pumps.
- Physical dimensions are approximately 2.0 inches in diameter and 4.0 inches in height. Verify space in your unit before ordering as dimensions may vary slightly.
- This is a single-value capacitor and is not a direct replacement for dual-run capacitors (e.g., 40/5 MFD) that have three separate terminal posts.
When to Replace
- Motor hums but does not start or has difficulty starting.
- Fan or blower requires a manual push to begin spinning.
- Visible signs of damage on the existing capacitor, such as a swollen or bulging top, or fluid leakage.
- Reduced performance or speed from the motor or compressor.
Installation Tips
- Disconnect all electrical power to the equipment before beginning work.
- Safely discharge the existing capacitor by carefully shorting across the terminals with an insulated screwdriver.
- Note or photograph the wire connections before removing the old capacitor.
- Connect the wires to the new capacitor in the same configuration. Polarity does not apply to AC run capacitors.
- Secure the new capacitor in place using the original mounting bracket or strap.
- Professional installation is recommended for those unfamiliar with electrical component replacement.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
As advertised for once! Lol
Color: Cooling Blue Cover, Size: Queen (Pack of 2), Color: Cooling Blue Cover, Size: Queen (Pack of 2)
Queen size set of 2 pillows, I'm giving it 5stars first bc it has a good length and width!! If you've ever bought memory foam pillows before you know some are small!! Anyways after having it for 5nights, we loved that me and my huddy could adjust the Thickness amount we had in it to our needs, me needing a thick pillow and my husband needing a flatter one. So this was perfect for that. So far its nice to sleep on, stays cool, doesnt get hot. I would say its on the frimer side but softer the more foam you take out! Really its just good for the amount you spend!! Will it last 10years probably not but what does now a days. This is the only time my huddy n I bought the same pillow and both love it so I'm just still in shock it worked out so well!!
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Adjustable pillows
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
I love these because they don't go flat. You can pull out whatever you need to make them comfy for you. They come in two different layers. So you have that protective cover over the main case that holds the memory foam. They're amazing to sleep on. I have had these last for years without going flat. If you hate flat pillows this is the way to go. They are very easy to wash. You just have to separate layers. They are very thick, you can adjust the thickness. Everyone in my house has at least one. They are worth the money. I have never had to replace them, because they went flat.
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Reviewed in the United States on May 6, 2026
★★★★★ 4
Good pillows
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
Takes some getting used to but and the cooling doesn’t last very long in my opinion, but overall amazing comfy pillows. The materials are good and are washable. I mostly stopped waking up with a stiff neck and back.
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Believe the Reviews
Color: Cooling Blue Cover, Size: King (Pack of 2)
I purchased these pillows because we were in need of new pillows, I previously had allswell pillows which were from walmart and they were good to start but now they tragically became very sparse and it started to effect my sleep so I saw these after careful review on other pillows and reviews I came across these and I saw some reviews and videos and I ordered them.. first they are king size we ordered they are perfect for the bed, they are plump and soft, they are memory foam which has always worked out for me for support and kept it’s shape these are great it did have a little smell I guess from packaging but other than that they are a huge upgrade from what we had before! I’m excited because they are cooling too! for the price point can’t beat it and this is coming from someone who was about to spend money on a purple pillow this will be good for now definitely buy it.
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Reviewed in the United States on March 28, 2026
★★★★★ 3
Inconsistent
Color: Cooling Blue Cover, Size: Queen (Pack of 2)
Ive ordered two different batches of these pillows, the first was a 2 pack, the second batch was a 4 pack. The pillows that came in the 2 pack have a different quality to them. The memory foam feels thicker, takes long to depress and to spring back to form. It offers more resistance, a heavier odor (at the start), and was the pillow that I fell in love with. Things changed when I ordered the 4 pack a couple months later. There was an inconsistency between the foam in these two different batches. both sets of pillows are comfortable. The first batch being firmer means I had to remove more foam before it became comfortable but the 2nd batch being more springy, I was able to keep all the foam inside. I docked a couple stars because I’m not able to provide a consistent experience with these pillows across all three beds in my home.
If you need a pillow, order a set and be happy. If you want a bunch of memory foam pillows throughout your house, maybe look elsewhere as these may not all be identical.
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Reviewed in the United States on January 17, 2026