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It can be difficult to buy a best ac hard start kit online without feeling anxious. There are a lot of things to consider before finalizing your purchase. For example, you might worry about how the product will arrive or if it’s good enough for your needs. It’s also hard to know if the company is reliable. To help you feel more confident in your purchases, we’ve made a list of the top 10 best ac hard start kit for our readers.

1SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting ... Top Pick

SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting …

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2Supco SPP6 Hard Start Kit Best Quality

Supco SPP6 Hard Start Kit

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3TJ90HS6 SPP6 Hard Start Kit for Air Conditioner by PartsBroz ... Recommended

TJ90HS6 SPP6 Hard Start Kit for Air Conditioner by PartsBroz …

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4AC Hard Start Capacitor Compatible with 5-2-1 CSR-U2, Compressor Saver ...

AC Hard Start Capacitor Compatible with 5-2-1 CSR-U2, Compressor Saver …

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5TOMORAL SPP6 Hard Start Kit for Air Conditioner PTC Relay ...

TOMORAL SPP6 Hard Start Kit for Air Conditioner PTC Relay …

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6SPP6 Hard Start Kit for Air Conditioner Relay/Capacitor Compatible with ...

SPP6 Hard Start Kit for Air Conditioner Relay/Capacitor Compatible with …

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7CSR-U1 Compressor Saver Compatible with 5-2-1 HVAC Hard Start Kit ...

CSR-U1 Compressor Saver Compatible with 5-2-1 HVAC Hard Start Kit …

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8Ultra Durable 5-2-1 CSR-U1 Compressor Saver Hard Start Capacitor by ...

Ultra Durable 5-2-1 CSR-U1 Compressor Saver Hard Start Capacitor by …

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9Supco SPP5 Hard Start Kit, AC Compressor

Supco SPP5 Hard Start Kit, AC Compressor

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10Antoble Hard Start Kit SPP6 Relay Start Capacitor Relay 1/2HP-10HP ...

Antoble Hard Start Kit SPP6 Relay Start Capacitor Relay 1/2HP-10HP …

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Review of Best Ac Hard Start Kit

Top Pick

SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting ...

1. SUPCO SPP6 Relay/Capacitor Hard Start Kit with 500% Increase Starting …

  • Brand: Sealed Unit Parts Co., Inc.
  • Manufacturer: SUPCO
  • Color: white
  • Dimensions: Height: 6.5 Inches Width: 7.25 Inches Length: 6.5 Inches Weight: 0.3 Pounds `

Features

  • Relay/capacitor hard start kit 500% incr starting torque
  • Increased compressor starting torque. Designed for use on permanent split capacitor single phase a/C and heat pump systems
  • The country of origin is china

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Best Quality

Supco SPP6 Hard Start Kit

2. Supco SPP6 Hard Start Kit

  • Brand: Supco
  • Manufacturer: Supco
  • Dimensions: Height: 3.5 Inches Width: 2.5 Inches Length: 1.5 Inches

Features

  • Supco Brand item
  • Manufacturer model SPP6
  • This is a genuine replacement part
  • Country of Origin: China

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Recommended

TJ90HS6 SPP6 Hard Start Kit for Air Conditioner by PartsBroz ...

3. TJ90HS6 SPP6 Hard Start Kit for Air Conditioner by PartsBroz …

  • Brand: PartsBroz
  • Manufacturer: PartsBroz
  • Color: As shown in the picture

Features

  • SPP6 ac Hardstart Kit – A high-quality exact equivalent for part numbers TJ90HS6, AP4502872, 35702, DST-6, ERPP6, HS6, HS650. Also works with heat pump systems.
  • Compatibility with major brands – Hard Start Capacitor Replacement is universal and works with a lot of appliances. It fits hundreds of models and can be installed in a few minutes.
  • Quick DIY repair – SPP6 Relay Start Capacitor will help if your appliance produces noise during startup, your system takes a while to startup, or you want to reduce energy consumption.
  • Attentive support – If you are uncertain about whether the kit fits your AC unit, we will help you. We generally put forth a valiant effort to guarantee you are totally happy with your purchase.
  • High-quality elements – Hard start capacitor for AC compressor meets or exceeds all manufacturer specifications. We provide a lifetime warranty and guarantee 100% money back.

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AC Hard Start Capacitor Compatible with 5-2-1 CSR-U2, Compressor Saver ...

4. AC Hard Start Capacitor Compatible with 5-2-1 CSR-U2, Compressor Saver …

  • Brand: Wadoy
  • Manufacturer: Wadoy

Features

  • ♥ [ PROLONGED EQUIPMENT LIFE ] – This potential relay reduces the amount of time your compressor is on high amp start-up, add years to the life of your compressor and other electrical components associated with your A/C system
  • ♥ [ START FASTER ] – Significantly reduces the amount of time it takes for your compressor to start.CSR-U2 start capacitor uses a powerful multi-layer starting capacitor and a smart switch to give the compressor the boost it needs to start up quickly, more reliably and draw less power
  • ♥ [ HARD STAR CAPACITOR ] – The Capacitor has been pre-wired for you. There are only 3 color coded wires which need to be connected.The Black wire will be connected to the Common side of the compressor. The Striped wire will be connected to the Start winding of the compressor and the Red wire will be connected to the Run winding of the compressor
  • ♥ [ LOWER ELECTRIC BILLS ] – Reduces the load on your compressor & Saves Electricity
  • ♥ [ QUALITY GUARANTEE ] – This is Non-Original Aftermarket Parts, but the quality is much better. If you have any problem, please contact us, we will be very happy to help you solve it

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TOMORAL SPP6 Hard Start Kit for Air Conditioner PTC Relay ...

5. TOMORAL SPP6 Hard Start Kit for Air Conditioner PTC Relay …

  • Brand: TOMORAL
  • Manufacturer: TOMORAL
  • Color: Black
  • Dimensions: Height: 1.8 Inches Width: 1.8 Inches Length: 5.25 Inches

Features

  • 🐕1.It can be used for various air conditioning compressors from 4000 BTU window units to 120000 BTU commercial units.Replaces parts number RCO410, HS410, TJ90RCO410, AP4503017, 600-410, and ERP410
  • 🐕2.The motor start capacitor and PTC thermistor in series, no loose parts or complicated wiring. It only needs to be connected in parallel with the run capacitor.
  • 🐕3.The SPP6 Hard Start Capacitor can save aged compressor by increasing the compressor’s starting torque by 500%.
  • 🐕4.Used widely in air conditioner start capacitor, air conditioner soft start, ac hard start kit, capacitor for ac, hvac capacitor, hvac hard start kit, etc.
  • 🐕5. This is a super capacitor that perfectly replaces goodman airconditioner capacitor, supco and dominant hard start capacitor. Wired with “Piggy-Back” terminals for easy installation on run capacitors.

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SPP6 Hard Start Kit for Air Conditioner Relay/Capacitor Compatible with ...

6. SPP6 Hard Start Kit for Air Conditioner Relay/Capacitor Compatible with …

  • Brand: Podoy
  • Manufacturer: Podoy

Features

  • ▲The SPP6 Compressor Hard Start Booster Capacitor can save stuck compressor by increasing the compressor’s starting torque by 500%.
  • ▲The solid-state relay and hard start capacitor no loose parts or complicated wiring. Just wire it across your run capacitor.
  • ▲It can be used on a wide range of air conditioning compressors from 4,000 BTU window units to 10-ton commercial units.
  • ▲Replace for: TJ90HS6,AP4502872,35702, DST-6, ERPP6, HS6, HS650.
  • ▲If you have questions, please feel free to contact us, we will deal with it as soon as possible. for any reason you’re not completely satisfied, you can ask for a replacement or full refund.

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CSR-U1 Compressor Saver Compatible with 5-2-1 HVAC Hard Start Kit ...

7. CSR-U1 Compressor Saver Compatible with 5-2-1 HVAC Hard Start Kit …

  • Brand: Wadoy
  • Manufacturer: Wadoy
  • Color: Black

Features

  • WORK WITH: This hard start kit works on units 1-2-3 tons
  • GREAT FUNCTION: A 5-2-1 compressor saver significantly reduces the amount of time your compressor is on high amp start-up. Using a powerful multi-layer starting capacitor and a smart switch to give your compressor the boost it needs to start up quickly, more reliably, draw less power and save your money.
  • MAIN FEATURES: The 5-2-1 method is approved by all major compressor manufactures, more safely; Easy to install, with only three wires to connect; Even if you don’t currently have any issues with your system, installing one of these kits will typically make the compressor last longer by not letting it remain on startup for any longer than it has to.
  • EASY TO INSTALL: There are only 3 color coded wires which need to be connected, the black wire will be connected to the common side if the compressor, the stripped wire will be connected to the start winding of the compressor, and the red wire will be connected to the run winding of the compressor.
  • PACKAGE INCLUDES: ONE 5-2-1 CSR U1 compressor saver. Note: When you find that the compressor saver expansion during use, please don’t panic, this is due to the long use time, the high external temperature, and the gas generated inside, not an ex-plosion

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Ultra Durable 5-2-1 CSR-U1 Compressor Saver Hard Start Capacitor by ...

8. Ultra Durable 5-2-1 CSR-U1 Compressor Saver Hard Start Capacitor by …

  • Brand: BlueStars
  • Manufacturer: BlueStars
  • Color: As Pictured

Features

  • ✅ PACKAGE INCLUDES: 1 x CSR-U1 Hard Start Capacitor Kit, 1 x Cable Ties, 2 x Screws
  • ✅ FUNCTION: This part protects vital components of your air conditioner by significantly reducing the amount of time. It helps your air conditioner and compressor bear ½ the stress, strain and heat each and every time it starts. Before you replace your air conditioner, try adding a 5-2-1 Compressor Saver . The 5-2-1 Compressor Saver might save you from wasting thousands of dollars to buy a new air conditioner or compressor. It’s a wise investment to install the 5-2-1 Compressor Saver.
  • ✅ EASY TO INSTALL: It is made exactly fit for most AC brands, there are only 3 color coded wires which need to be connected, the black wire will be connected to the common side if the compressor, the stripped wire will be connected to the start winding of the compressor, and the red wire will be connected to the run winding of the compressor.
  • ✅ PREMIUM QUALITY: The replacement part is made from durable high quality material and well-tested by the manufacturer
  • ✅MONEY-BACK GUARANTEE: For any reason you’re not completely satisfied, you can ask for a replacement or FULL refund, no questions asked.

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Supco SPP5 Hard Start Kit, AC Compressor

9. Supco SPP5 Hard Start Kit, AC Compressor

  • Brand: Supco
  • Manufacturer: SUPCO
  • Color: white
  • Dimensions: Height: 3.5 Inches Width: 2.5 Inches Length: 1.5 Inches

Features

  • Price For: Each Item: Hard Start Kit Application: For Use on Residential and Commercial Air Conditioning Units, Heat Pumps and Room Air Conditioners, Provide Additional Starting Torque to all Single Phase 115 thru 288 Volt Units Includes: Lead Wires, Electronic Potential Relay (EPR), 330 V Capacitor Type: Relay and Start Capacitor Voltage: 90-277 HP: 1/2 to 10 Increased Torque (Oz.-In.): 300
  • Country of Origin (subject to change): China

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Antoble Hard Start Kit SPP6 Relay Start Capacitor Relay 1/2HP-10HP ...

10. Antoble Hard Start Kit SPP6 Relay Start Capacitor Relay 1/2HP-10HP …

  • Brand: ANTOBLE
  • Manufacturer: Antoble

Features

  • 【Parts Number】: The SPP6 Compressor Hard Start Booster Capacitor can save aged compressor by increasing the compressor’s starting torque by 500%.
  • 【Compatibility】It can be used for various air conditioning compressors from 4000 BTU window units to 120000 BTU commercial units. Replaces parts SPP6, TJ90HS6, AP4502872, 35702, DST-6, ERPP6, HS6, HS650.
  • 【Easy to Install】The motor start capacitor and PTC thermistor in series, no loose parts or complicated wiring. It only needs to be connected in parallel with the run capacitor.
  • 【High Quality】 The replacement part is made by durable high quality material and tested by the manufacturer.
  • 【Service】Please feel free to contact us if you have any question on our products, we will reply you as soon as possible within 24 hours.

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Customer Reviews:

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The Best Customer Support.

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Honesty and Trustworthiness:

Amazon is undoubtedly a trusted marketplace. We can highly ensure you that Amazon won’t scam you. Reviews are the best factor in judging a product. A customer needs to buy a product before leaving a review about the product. That’s why all the customer reviews available at Amazon are called verified reviews. So, by reading the reviews, you can decide before buying. And I repeat, we studied all the reviews about a product and picked the finest one for you.

Amazon Offers Fast Delivery and Lower Shipping cost.

Amazon has been known for their fast delivery of items, however, they are now also offering lower shipping costs. This new feature was first introduced in the United Kingdom and is now available to all Amazon Prime members in the United States. Prime members get two-day shipping for $3.99 and one-day shipping for $1.99. Additionally, if you purchase an item that is more than $25, then Amazon will ship it for free with no minimum purchase requirement.

Warranty

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Conclusion

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