

⚡ Power your motors with precision and reliability — don’t get left behind!
The BOJACK 40+5 µF CBB65 dual run circular start capacitor is a robust, industrial-grade component designed for AC motors in HVAC systems. Featuring a compact metal shell, it supports a wide operating temperature range (-40℃ to +70℃) and dual voltage ratings (370V/440V AC). Its triple-terminal design simplifies installation, making it an ideal replacement for central air-conditioners, heat pumps, and condenser fan motors. Engineered for durability and safety with a 10,000 AFC rating, this capacitor ensures reliable motor startup and operation under demanding conditions.
| ASIN | B07SBQNQ6S |
| Best Sellers Rank | #18,165 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #48 in Industrial Electrical Capacitors |
| Capacitance Tolerance | 6 |
| Date First Available | May 26, 2019 |
| Item Weight | 10.5 ounces |
| Item model number | BJ-CAP4 |
| Manufacturer | BOJACK |
| Maximum Voltage | 440 Volts |
| Mounting Type | Through-Hole Mount |
| Operating Voltage | 440 Volts |
| Product Dimensions | 1.97"W x 4.53"H |
| UPC | 768894138567 |
| Upper Temperature Rating | 158 Degrees Fahrenheit |
J**.
Works well.
Easy to replace. Slightly different fit but function is same.
K**B
Great aftermarket replacement
Worked like a charm when my AC compressor capacitor got weak.
K**R
Simple install, fixed AC without an expensive service call!
My outside AC unit stopped functioning. What was happening is it would hum but the fan would spin. The fan motor would get very hot and then the unit would just shut off. At one point to diagnose it, when it went to go on and it was humming I took a stick and pushed the fan blades to see if they were stuck. It started spinning fine then. After doing some research it lead to the capacitor being bad. It holds an electrical charge and when the machine is turned on, it gives the motor that boost it needs to start up. Kind of like kickstarting a manual car with a bad starter. Not wanting to spend an fortune on a service call, I opened the side panel up with 3 screws and read the values on the current capacitor. I ordered the same value AC capacitor here for real cheap. So cheap it wouldn’t be a bad idea to get another one as a spare. To install it, I just took a picture of the current one to see which color wires go where. There was also a wiring diagram on the inside panel. The terminals fit perfectly and it’s just a metal strap with a screw to hold the capacitor in place. Once hooked up, in the disconnect box I flipped the jumper and then went back inside and turned back on the circuit breaker to the unit. I called for AC and it started right up! Problem solved. This was in a Goodman 2.5 ton outdoor AC unit that was installed in the fall of 2011. So the original part lasted 11 years.
J**S
Good buy
Great value or was delivered quickly and half the price I was quoted elsewhere
R**R
Did the job!
Great price, timely shipping, a little slimmer compared to original (re install 🕳️ hole), but did the job. 👍🏻
B**R
Works
Replaced a failed capacitor with this one. Ran strong all summer, doubt this one will be in service as long as the old one but its a cheap and easy fix.
S**N
Works Great
After our unit went down, I priced the cost to have someone fix but the cost was crazy high. I went on AI assistant stated the issues and within a minute I had my answer along with instructions on replacing the part. Less than 15 minutes, after receiving the part, our unit was up and running with no more issues!
T**I
Capacitor that slaps, No Cap.
Did exactly what I needed it to do. AC has been working great ever since replacement. Easy to install. Saved me $200+ from calling an HVAC tech. May not fix all AC problems. If you're not a licensed tech, do your research and make sure you watch plenty of how-to vids. Capacitors can store charges even with the power off and will zap the you.
C**S
Great item for a fraction of the price from a dealer. Great OEM product and easy to install. No issues after a year of use.
J**Y
Très bon produit à coût moindre a fonctionné parfaitement sur ma thermopompe
K**A
Changed this out on my ac. Super easy and works like it should.
L**E
This capacitor works great with my HVAC system. It saved me from spending thousands to fix or replace my Air-conditioning system.
J**H
I have replaced this Capacitor last week when My original Capacitor worn out It is working as good as OEM. I have a goodman Ac Unit.
Trustpilot
3 weeks ago
2 months ago