![[UL Listed] BlueStars 40 uF MFD 370-440 VAC Volts CBB65A Round Run Start Capacitor - for AC Motor Run or Fan Start Cool Heat Pump Air Conditioner or Condenser Straight - Lifetime up to 30,000 Hours](https://m.media-amazon.com/images/I/71S7qns+uqL._SL1500_.jpg)
BlueStars
[UL Listed] BlueStars 40 uF MFD 370-440 VAC Volts CBB65A Round Run Start Capacitor - for AC Motor Run or Fan Start Cool Heat Pump Air Conditioner or Condenser Straight - Lifetime up to 30,000 Hours
*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.
Bottom line: The [UL Listed] BlueStars 40 uF MFD 370-440 VAC Volts CBB65A Round Run Start Capacitor - for AC Motor Run or Fan Start Cool Heat Pump Air Conditioner or Condenser Straight - Lifetime up to 30,000 Hours is a category leader on buyer feedback in the tools & maintenance category, priced around $13.49, rated 4.6★ across 2,281 verified Amazon reviews. A confident buy for most shoppers in this category.
SpecPicks Verdict
SpecPicks classifies [UL Listed] BlueStars 40 uF MFD 370-440 VAC Volts CBB65A Round Run… as a category leader on buyer feedback in the tools & maintenance category, based on 2,281 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. BlueStars's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for tools & maintenance of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.6★ average across customer reviews
- ✓ Large, well-vetted feedback pool (2,281 reviews)
- ✓ Backed by BlueStars's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- MODEL NUMBER - 40 uF/MFD 370-440VAC Round Run Start Capacitor. Replaces BOTH 370VAC & 440VAC capacitors round motor run capacitor
- SPECIFICATIONS - Capacitance: 40 uf; Rated voltage: AC 370-440V; Tolerance: 5%; Shape: Round Run - Capacitor dimensions: 50mm x 105mm; Operating temperature range: -25℃ to 70℃; temperature coefficient : 40/70/21; 10000AFC - No PCBs; Engineered For Safety 10000 AFC Anti Explosion Pressure Switch
- PREMIUM QUALITY: Compliant with the TOUGHEST US and Australian Standards for AC motor run capacitors, including UL & CUL, CEL and TÜV SÜD
- EXACT REPLACEMENT: It is a perfect replacement to solve cooling problems for your air conditioner and gear motor applications. Multi-Purpose Round Capacitor for Air Conditioner AC Unit Fan Motor Start or Heat Pump or Condenser Straight Cool
- INSTRUCTIONS: No wiring or adapter changes are required. Two terminals on the top are labeled "Herm"/"H" for the compressor motor or "Fan"/"F" for the fan, and "C" for the common line.
- 100% LIFETIME PROTECTION: Enjoy reliable performance with our lifetime protection, ensuring that your product will always be covered for any defects or issues that may arise.
Full Specifications
| Brand | BlueStars |
|---|---|
| Model | [Upgraded] 40uf 370-440VAC |
| Shape | Round |
| Material | 40 MFD 370-440VAC |
| Item Shape | Round |
| Capacitance | 40 Microfarad |
| Part Number | [Upgraded] 40uf 370-440VAC |
| Compatibility | Switch |
| Material Type | 40 MFD 370-440VAC |
| Mounting Type | Snap-In Mount |
| Maximum Voltage | 440 Volts |
| PREMIUM QUALITY | Compliant with the TOUGHEST US and Australian Standards for AC motor run capacitors, including UL & CUL, CEL and TÜV SÜD |
| Operating Voltage | 440 Volts |
| Included Components | 40 MFD 370-440 VAC CBB65A Capacitor |
Ready to buy?
[UL Listed] BlueStars 40 uF MFD 370-440 VAC Volts CBB65A Round Run Start Capacitor - for AC Motor Run or Fan Start Cool Heat Pump Air Conditioner or Condenser Straight - Lifetime up to 30,000 Hours is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.
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