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โก Power up your AC like a proโstart strong, stay cool!
The AMI PARTS SPP6 Hard Start Capacitor Replacement is a high-quality, easy-to-install solution designed to increase compressor starting torque by 500%, compatible with a wide range of air conditioners (4,000-120,000 BTU) and compressors (1/2 to 10 HP). Made from durable ABS material and operating within 115V-288VAC, it offers a reliable, cost-effective fix that eliminates the need for professional service calls.









| ASIN | B07X3RW5YY |
| Best Sellers Rank | #12,834 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #41 in Industrial Electrical Capacitors |
| Brand | AMI PARTS |
| Brand Name | AMI PARTS |
| Customer Reviews | 4.4 out of 5 stars 1,270 Reviews |
| Item Highlight | Air Conditioner Units 4,000-120,000 BTU, 1/2 Thru 10 H.P., Increases Compressor Torque 500% |
| Item Shape | Round |
| Manufacturer | AMI PARTS |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Material Type | Acrylonitrile Butadiene Styrene (ABS) |
| Maximum Voltage | 288 volts |
| Model | SPP6 |
| Mounting Type | Snap-In Mount |
| Number of Items | 1 |
| Operating Voltage | 288 volts |
| Part Number | SPP6 |
| Shape | Round |
| UPC | 740306408437 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 40 ยฐC |
C**R
Worked perfectly for me (at least so far)
HVAC Unit stopped cooling - sounded like compressor just couldn't get going. The HVAC Company told me the compressor was locked up, and the Capacitor seemed ok, so given furnace/compressor was 25+ years old, it would ALL need to be replaced (for $12,000 to $15,000). The Tech said they COULD install a hard start capacitor that MIGHT fix the issue temporarily for $340, but as soon as they started to install it, it was paid for & no refunds. Didn't want to gamble $340 for potentially nothing, so sent them on their way (with $100 for the SVC call). I then started googling and learning about hard start capacitors. Bought this unit for $15 and installed it the next day without difficulty. Compressor started up immediately and ran fine, so this was pretty good for $15! Of course the question is how LONG will it last? No idea, but if I can get through this Summer I will be very happy, and I know some people have eked out a couple of years usage with these things. One comment: many DIY Videos fail to mention that capacitors can hold a charge AFTER the breaker panel is turned off. BE SURE to discharge existing capacitor by grounding out all the lugs with a screwdriver with an insulated handle! I knew to do that already, but I am sure some novices could get zapped otherwise.
A**R
Just what I needed
This was the part I needed to keep my HVAC system going, weather was so hot ac kept tripping breaker, changed out capacitor, it would run a few cycles and trip breaker again, watched a few YouTube videos and saw this decided to give it a try,so far so good and cheap fix.
M**A
Hard Start works!
This kit was easy to install and has been getting my compressor going every time there is a call for it.
R**N
Good Price and Works Well
This hard start kit worked well for my AC unit and the price was very reasonable compared to other options. Installation was straightforward and the product feels solid for the cost. After installing it, the compressor started more smoothly and seemed to have better starting power.
M**.
Started aging compressor
I was going to replace my 23 year old Coleman A/C, but a friend asked me why and when I explained the issue he recommended I try an SPP6. It got the old compressor to start again. Not expecting it to fix it forever, but pleased with the performance.
M**E
Quick Failure
Didn't last a day on my 3.5 ton home ac compressor (9 years old). Blew up and dumped oil. I'm an electrician by trade and it was installed properly. I have attached a pic of it dead on my workbench stinking up my garage. Rest in peace lil buddy. I should've bought a higher quality component Made in USA instead of this Chinese product. Lesson learned. Thankfully I was able to take it out of the circuit and everything is working OK without it. My Titan HD cap stepped up and is taking care of business until I spend my money in a wiser fashion on a different hard start kit.
S**Y
Fairly large and physical size
Two wire hook up to existing start run capacitor. Very simple discharge the existing capacitor first before you wire in. Itโs probably a good idea after the power has been turned off otherwise any do it yourself or should be able to take care of that?
H**N
Good Capacitor
Work aโs expected
Trustpilot
1 month ago
2 weeks ago