








⚡ Power your AC like a pro — never miss a cool moment!
The BlueStars 70+10 µF dual run start capacitor is a high-quality, OEM-standard replacement designed for central air conditioners, heat pumps, and condenser fan motors. Rated at 370-440 VAC and built with durable aluminum, it offers stable capacitance with ±5% tolerance and operates reliably across a wide temperature range (-25℃ to 70℃). Backed by a 100% lifetime warranty, it ensures efficient motor starting and long-term performance, making it the smart choice for professionals upgrading or maintaining HVAC systems.





| ASIN | B0B24V6P9G |
| Batteries Required? | No |
| Batteries included? | No |
| Customer Reviews | 4.4 4.4 out of 5 stars (63) |
| Date First Available | 15 Dec. 2022 |
| Item Weight | 372 g |
| Item model number | 70+10 uf 370-440VAC |
| Manufacturer | BlueStars |
| Material | Aluminium |
| Package Dimensions | 15.29 x 6.81 x 6.81 cm; 372 g |
| Part number | 70+10 uf 370-440VAC |
| Shape | Round |
D**Y
the capacitor itself seems fine, but it ships in the flimsiest cardboard the earth has ever seen. if amazon puts that in a soft envelope you're almost guaranteed to damage it. buy this as part of a larger order so it comes in a box.
J**G
Delivered on time but I have not installed it yet. I like the color coding on the terminals, but wire colors do not always match.
I**S
AC Start Capacitor... MY AC maintenance company rep actually recommended I keep one of these of this size and configuration on hand for my brand and model of AC compressor system. Lots of video content to show you how to change it out. Literally the first thing you check if the compressor fails to run. The 5 stars are just because it arrived on time as I have yet to need it.
B**Y
Put it on my RV AC unit and it still work ing in 100 degree heat still working after 3 weeks
A**R
Received on time. Installed on heat pump. Worked great, system returned to service and working fine. Good product, good price. Thanks,
Trustpilot
2 months ago
2 months ago