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Description
45 uF MFD ±5% 370/440 VAC 50/60 Hz Round Run Start Capacitor - Fits AC Motor Run, Fan Start, Heat Pump45 uF MFD 370 440VAC Round Run Start Capacitor Key Features Capacitance: 45 Microfarad (uF MFD) Tolerance: + 6% Voltage Rating: Dual rated for 370 VAC or 440 VAC Frequency: 50 60 Hz Shape: Round Case Material: Aluminum Dielectric Material: Metalized Polypropylene Terminals: 1 4 inch male quick connect Safety Standard: Meets EIA 456 A specifications Operating Temperature: 40C to 70C Replaces Cross Reference Part Numbers Replaces any single value round
45 uF/MFD 370-440VAC Round Run Start Capacitor
Key Features
- Capacitance: 45 Microfarad (uF/MFD)
- Tolerance: +/- 6%
- Voltage Rating: Dual rated for 370 VAC or 440 VAC
- Frequency: 50 / 60 Hz
- Shape: Round
- Case Material: Aluminum
- Dielectric Material: Metalized Polypropylene
- Terminals: 1/4 inch male quick-connect
- Safety Standard: Meets EIA-456-A specifications
- Operating Temperature: -40°C to 70°C
Replaces / Cross-Reference Part Numbers
- Replaces any single-value round capacitor with matching 45 uF capacitance and either a 370V or 440V rating.
- Universal replacement for capacitors used by brands such as Carrier, Goodman, Lennox, Rheem, Trane, York, and others.
Compatibility & Fitment
- For continuous duty in single-phase motor applications.
- Commonly used in air conditioner condenser units, heat pumps, and furnace blower motors.
- Also used for compressor motors, fan motors, and refrigeration systems.
When to Replace
- Motor hums but fails to start.
- Fan requires a manual push to begin rotating.
- AC compressor does not engage.
- Visible damage to the existing capacitor, such as a bulging or swollen case, or leaking fluid.
- Capacitance measures outside the specified tolerance when tested with a multimeter.
Installation Tips
- Disconnect all electrical power to the unit before servicing.
- Discharge the old capacitor by carefully shorting the terminals with an insulated-handle screwdriver or a discharge tool.
- Confirm the new capacitor's uF rating matches the original part.
- The voltage rating of the new capacitor must be equal to or higher than the original. A 440V capacitor can safely replace a 370V capacitor.
- Note the wire positions on the original terminals before disconnecting.
- Secure the new capacitor using the existing 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:
- 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
4.6 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Comfortable shorts!
Color: Black, Size: Large
I ordered these because I wanted some lightweight comfortable shorts for the summer that were now gym shorts.
These are very comfortable shorts. Lightweight cotton material that is not stretchy and it breathes well. The size fits exactly as expected according to the measurements. They also have an elastic waistband with drawstring, but also have a button and zipper, which I found odd, but don’t hate.
These shorts have two big pockets in the front, large enough for keys and a cell phone. Deep enough to put your entire hand in. The single back pocket is perfect sized for a wallet, and it has a button that secures the pocket, so no losing the wallet in the movie theater or restaurant.
The color is a true black, which I’m sure will fade in the future after many washes, but for now, it is dark and black, not like some that look more navy blue than black. The stitching is also done well.
These are probably my new favorite pair of shorts that are comfy able enough to wear around the house when just lounging, but also nice enough to wear out to dinner. Well worth the price, will probably buy another pair in a different color soon.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Great country/cowboy shirt
Color: 01-black, Size: Medium
Perfect fit and look for cruise country night. Should have purchased the buckle too.
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Reviewed in the United States on May 3, 2026
★★★★★ 5
Top-tier quality and fit
Color: Khaki, Size: Large
I'm really impressed with the fit of this shirt it’s true to size and has a great slim-fit cut. The embroidery and fabric quality are excellent, making it look much more expensive than it is. Perfect for any occasion where you want to stand out.
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Reviewed in the United States on March 9, 2026
★★★★★ 5
Look Amazon app
Color: 01-black, Size: 4X-Large, Color: 01-black, Size: 4X-Large
Love this cowboy shirt great quality and true size receive many compliments with people and asking me what store I got it from they couldn't believe when I said I got it in the Amazon app and the price very cheap for a cowboy shirt so thank you Amazon for making my day
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Reviewed in the United States on May 3, 2026
★★★★★ 4
Not bad for the money
Color: Blue, Size: X-Large
Not bad for the money, BUT, not high quality fabric (KINDA wrinkles easily, but Ironed nicely..
Stitching was decent..
Only washed one time (inside out and in cold), so it's kinda early to fully rate, but I will not over -wash it...For a musician, it's kinda nice ...Might buy a couple more for the stage👍
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Reviewed in the United States on September 23, 2025