--- product_id: 171315463 title: "SPP6 Hard Start Capacitor Replacement 115V Thru 288VAC Hard Start kit for air Conditioner Units from 4,000 to 120,000(1/2 Thru 10H.P.),Increases Compressor Torque 500% by AMI PARTS" brand: "ami parts" price: "£16.78" currency: GBP in_stock: true reviews_count: 8 category: "Ami Parts" url: https://www.desertcart.co.uk/products/171315463-spp6-hard-start-capacitor-replacement-115v-thru-288vac-hard-start store_origin: GB region: United Kingdom --- # 500% torque boost Plug & play install Durable solid-state relay SPP6 Hard Start Capacitor Replacement 115V Thru 288VAC Hard Start kit for air Conditioner Units from 4,000 to 120,000(1/2 Thru 10H.P.),Increases Compressor Torque 500% by AMI PARTS **Brand:** ami parts **Price:** £16.78 **Availability:** ✅ In Stock ## Summary > ⚡ Power up your AC’s heartbeat with zero hassle! ## Quick Answers - **What is this?** SPP6 Hard Start Capacitor Replacement 115V Thru 288VAC Hard Start kit for air Conditioner Units from 4,000 to 120,000(1/2 Thru 10H.P.),Increases Compressor Torque 500% by AMI PARTS by ami parts - **How much does it cost?** £16.78 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/171315463-spp6-hard-start-capacitor-replacement-115v-thru-288vac-hard-start) ## Best For - ami parts enthusiasts ## Why This Product - Trusted ami parts brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** High-quality materials and solid-state relay ensure reliable, maintenance-free operation. - • **Peace of Mind Support:** Responsive customer service with guaranteed solutions within 12 hours. - • **Effortless Installation:** Snap-in mount with simple wiring—no technician needed, save on service fees. - • **Universal Compatibility:** Works seamlessly with 115V to 288VAC units, from 1/2 to 10 HP compressors. - • **Turbocharge Your AC Start-Up:** Boost compressor torque by 500% for instant power-on performance. ## Overview The SPP6 Hard Start Capacitor Replacement by AMI PARTS is a high-performance, snap-in hard start kit designed to increase air conditioner compressor starting torque by 500%. Compatible with 115V to 288VAC units ranging from 4,000 to 120,000 BTU (1/2 to 10 HP), it features a durable solid-state relay for reliable operation and easy installation that eliminates costly service calls. Backed by quality manufacturing and responsive after-sales support, it’s the smart, cost-effective upgrade to keep your AC running strong through any heatwave. ## Description Product description EASY DO IT YOURSELF REPAIR Following along with an online repair video is the easiest way to ensure proper DIY installation of a SPP6 Compressor Hard Start Booster Capacitor Tip:Safely store any food that could deteriorate while the power is off and unplug the refrigerator before installing this part. Wear work gloves to protect your hands. DIY AND SAVE A BUNCH OF MONEY Features： Easy To Install Made Of High Quality Materials Saves Time and Effort Save You A Large Amount Of Maintenance Costs The SPP6 Compressor Hard Start Booster Capacitor can save stuck compressor by increasing the compressor’s starting torque by 500% Works with most top name brands It is made exactly fit for most top name brands.if your Range is not listed above, please send us a message so we may help you obtain the correct part High quality quality This Replacement Part is made from durable premium material and well-tested by the manufacturer.it is built to last and a popular choice among repair technicians and DIYers Replace part TJ90HS6,AP4502872,35702, DST-6, ERPP6, HS6, HS650, and SPP6. Create A Comfortable Life For You AMI PARTS is a professional appliances replacement parts supplier, committed to providing customers with quality products. Review: 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. Review: Easy to install out of the box - Works great on older AC compressor/condensor units that benefit from that extra start torque this provides. Easy install. ## Features - 【Parts Number】: The SPP6 Compressor Hard Start Booster Capacitor can save stuck compressor by increasing the compressor’s starting torque by 500% - 【Replaces part numbers】: SPP6, TJ90HS6,AP4502872,35702, DST-6, ERPP6, HS6, HS650 - 【Superiority】: The solid-state relay and hard start capacitor no loose parts or complicated wiring. Just wire it across your run capacitor. Saves you a service fee from the appliance guy! Inexpensive way to fix or repair - 【Quality Guaranteed】: The replacement part is made from high quality material and well-tested by the manufacturer.Be sure to disconnect the power supply before starting maintenance - 【Excellent After-sales Service】:We are full of confidence in the quality of Our SPP6 Compressor Hard Start. We have a professional feedback team. You can give us feedback at any time during this period, and we will provide you with a satisfactory solution within 12 hours, Don’t hesitate to solve the dryer problem easily ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07X3RW5YY | | Best Sellers Rank | #3,238 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #13 in Industrial Electrical Capacitors | | Brand | AMI PARTS | | Brand Name | AMI PARTS | | Customer Reviews | 4.5 out of 5 stars 1,328 Reviews | | 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 | | Operating Voltage | 288 Volts | | Part Number | SPP6 | | Shape | Round | | UPC | 740306408437 | | Unit Count | 1.0 Count | | Upper Temperature Rating | 40 Degrees Celsius | ## Product Details - **Brand:** AMI PARTS - **Material:** Acrylonitrile Butadiene Styrene (ABS) - **Maximum Voltage:** 288 Volts - **Operating Voltage:** 288 Volts - **Shape:** Round ## Images ![SPP6 Hard Start Capacitor Replacement 115V Thru 288VAC Hard Start kit for air Conditioner Units from 4,000 to 120,000(1/2 Thru 10H.P.),Increases Compressor Torque 500% by AMI PARTS - Image 1](https://m.media-amazon.com/images/I/71Z48aCBtuL.jpg) ![SPP6 Hard Start Capacitor Replacement 115V Thru 288VAC Hard Start kit for air Conditioner Units from 4,000 to 120,000(1/2 Thru 10H.P.),Increases Compressor Torque 500% by AMI PARTS - Image 2](https://m.media-amazon.com/images/I/71-MBinn0AL.jpg) ![SPP6 Hard Start Capacitor Replacement 115V Thru 288VAC Hard Start kit for air Conditioner Units from 4,000 to 120,000(1/2 Thru 10H.P.),Increases Compressor Torque 500% by AMI PARTS - Image 3](https://m.media-amazon.com/images/I/71sErJWMq4L.jpg) ![SPP6 Hard Start Capacitor Replacement 115V Thru 288VAC Hard Start kit for air Conditioner Units from 4,000 to 120,000(1/2 Thru 10H.P.),Increases Compressor Torque 500% by AMI PARTS - Image 4](https://m.media-amazon.com/images/I/71C+OrL33GL.jpg) ![SPP6 Hard Start Capacitor Replacement 115V Thru 288VAC Hard Start kit for air Conditioner Units from 4,000 to 120,000(1/2 Thru 10H.P.),Increases Compressor Torque 500% by AMI PARTS - Image 5](https://m.media-amazon.com/images/I/71zQDa6NWJL.jpg) ## Available Options This product comes in different **Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Price and Works Well *by R***N on May 8, 2026* 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. ### ⭐⭐⭐⭐⭐ Easy to install out of the box *by K***P on May 22, 2026* Works great on older AC compressor/condensor units that benefit from that extra start torque this provides. Easy install. ### ⭐⭐⭐⭐⭐ Hard start kit *by A***R on May 1, 2026* Work fine last long time. Easy to install. ## Frequently Bought Together - SPP6 Hard Start Capacitor Replacement 115V Thru 288VAC Hard Start kit for air Conditioner Units from 4,000 to 120,000(1/2 Thru 10H.P.),Increases Compressor Torque 500% by AMI PARTS - BOJACK 1 Poles FLA 30 Amp Coil 24 VAC Air Conditioner Condenser Compressor Contactor AC Definite Purpose Contactor - BOJACK 35+5uF 35 5 MFD ±6% 370V/440V CBB65 Dual Run Circular Start Capacitor for AC Motor Run or Fan Start or Condenser Straight --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/171315463-spp6-hard-start-capacitor-replacement-115v-thru-288vac-hard-start](https://www.desertcart.co.uk/products/171315463-spp6-hard-start-capacitor-replacement-115v-thru-288vac-hard-start) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-30*