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Description
5 uF MFD ±5% 370/440 VAC Oval Run Start Capacitor - Fits AC Motor Run, Fan Start, Heat Pump - Replaces 97F57055uF MFD 5% 370 440VAC Oval Run Start Capacitor Key Features Capacitance: 5 MFD uF Tolerance: 5% Voltage Rating: 370V 440V AC Frequency: 50 60 Hz Shape: Oval Construction: Metal case, oil filled for heat dissipation Terminals: 1 4 inch male quick connect Safety Standard: UL recognized Operating Temperature: 40C to +70C Replaces Cross Reference Part Numbers Replaces any oval shaped 5 MFD capacitor with either a 370VAC or 440VAC rating. Compatible
5uF MFD ±5% 370-440VAC Oval Run Start Capacitor
Key Features
- Capacitance: 5 MFD / uF
- Tolerance: ±5%
- Voltage Rating: 370V / 440V AC
- Frequency: 50 / 60 Hz
- Shape: Oval
- Construction: Metal case, oil-filled for heat dissipation
- Terminals: 1/4 inch male quick-connect
- Safety Standard: UL recognized
- Operating Temperature: -40°C to +70°C
Replaces / Cross-Reference Part Numbers
- Replaces any oval-shaped 5 MFD capacitor with either a 370VAC or 440VAC rating.
- Compatible replacement for CBB65 type capacitors with matching specifications.
- Interchangeable with capacitors from brands such as Aerovox, TEMCo, ClimaTek, and others meeting the same MFD and voltage ratings.
Compatibility & Fitment
- Designed for continuous duty in single and three-phase AC motor applications.
- Commonly used in:
- Air conditioner condenser fan motors
- Furnace blower motors
- Heat pumps
- Pool and spa pumps
- Compressors
- Physical Dimensions: 2.0 in Width x 2.5 in Height x 1.25 in Depth (approximate case size).
When to Replace
- Motor produces a humming sound but fails to start.
- The capacitor case is visibly swollen, bulging, or leaking fluid.
- Capacitance measures outside the rated tolerance (below 4.75 uF or above 5.25 uF) when tested with a multimeter.
Installation Tips
- Disconnect all electrical power to the equipment before beginning work.
- Safely discharge the existing capacitor by shorting the terminals with a resistor or an insulated tool.
- Confirm the uF (MFD) rating and voltage of the new capacitor match the component being replaced.
- Note the wiring configuration before disconnecting the old part.
- Ensure all electrical connections are tight and secure after installation.
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
4.8 ★★★★★
Based on 2103 reviews
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Product Reviews
★★★★★ 5
Perfect little black chair
I bought this chair for four reasons:
1. My favorite color is black, but the company offers different color options.
2. The height of the chair was exactly what I was looking for. I did not want a tall back for the chair. The chair is close to the ground, which is a plus for me, my back, and my knees as I get older.
3. The chair comes with the option of wheels or no wheels; I chose the no wheels option, as I get dizzy and sick when I spin around for too long.
4. The chair’s wide back and seat design are perfect for me, since I prefer to sit criss-cross in a chair.
Pluses: It reclines, is comfy, and can be cleaned and moved easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
★★★★★ 5
Great chair, highly recommend!
Color: Cream, Size: PU Leather(No Wheels), Color: Cream, Size: PU Leather(No Wheels)
Very nice looking chair! It is comfortable, classy, and durable unless you have a cat like mine who used it for his claws. It was easy to put together. All of the hardware was of good quality and everything fit perfectly. My 14 year old daughter even put it together herself. We actually bought two of these. The other one is in my daughter‘s room for her vanity. I highly recommend them whether you’re buying it to sit crisscross or just for roomy comfort. It is a very comfortable chair and looks elegant.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 15, 2026
★★★★★ 5
New Favorite Desk Chair
This chair is exactly what I was looking for! It is simple to put together, very sturdy and very comfortable. I typically tend to sit criss cross while at my desk and I can do that very comfortably with it. Im a bigger girlie so a chair that can hold weight or deal with me shifting positions was very important to me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 4
Comfortable chair
Color: Cream, Size: PU Leather(No Wheels)
Ordered this chair for my daughter for Christmas. It's a great chair. It's very comfortable. She wishes it had wheels. I didn't see a way to add wheels to this base, either. Still a good chair. You have to make sure where you put it you can spin to get out of it. Pushing it back and forth on carpet doesn't work well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
★★★★★ 5
Great Office Chair
I purchased this chair to replace the old one in my son's room. I really like the look and style of this chair. It was easy for me to assemble and the riser functions really good and the stability of the base is very good. I like the wide design as it has more back support and seat support.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
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