We all know that the best electric fan wiring kit is one of many out there. That’s why we’ve taken 64491 reviews from top experts and organized them according to our rankings for you.
We know how hard it is to find a great electric fan wiring kit, which is why our team went through the whole research process and put up this list for you. These are just some of their favorites!
We have been exhaustive in our search for the perfect electric fan wiring kit of 2026. If quality matters most, then check this list:
Bestseller No. 1
Electric Fan Wiring Kit Electric Fan Relay Kit with Thermostat Radiator Fan Sensor Switch Electric Cooling Fan Thermostat Kit Temperature Sensor Switch 185 On 175 Off, 40 AMP Waterproof Relay Kit - All wires are clearly labeled and color-coded. And an easy-to-follow wiring diagram is included in the package. RED to 12VDC positive battery terminal, COFFEE to Fan Positive, BLACK to Sending Unit, GREY to Ignition per wiring diagram. Direct replacement part fits 10, 12, 14, and 16 inch cooling fans. For dual fan wiring, you would need two of this relay kit
- Temperature switch turns on fan approximately at 185 Degrees and Off at 175 Degrees. The temp sensor has a 3/8 inch pipe thread, and a 1/2 inch adapter included. Please note: you need to run a 160 degrees thermostat when running this kit with this temp switch. If you got a thermostat above 160 degrees (say 180 thermostat) , your engine will not get cool enough for the fan to shut off
- This electric cooling fan kit comes with everything you need, includes 40A relay, wiring harness, temperature switch, 3/8 inch to 1/2 inch adapter, inline waterproof fuse holder, fuses, 1 spade connector for the temp sensor, 4 ring terminals and 2 wire connectors
- The temperature switch supplied with this kit is OE style to mount in the cylinder head of the engine or any water jacket if needed. The temperature switch MUST be grounded through the threads to the engine in order for it to work, and the engine MUST be grounded
- This relay kit is enough to run medium profile or low profile electric fan. For high profile fan, you can use ZOZOMOTORS heavy duty relay kit P/N 30247. Or crimp/solder bigger wires yourself for pin 30 & 87 to carry enough load for the fan (10 gauge wire - 30 Amps). Recommend to use dual fan relay kit to run dual fan set up
Bestseller No. 2
FASTSTORM Dual Electric Fan Relay Kit Electric Radiator Fan Kit Temperature Sensor Switch 185 On 175 Off Automotive Wiring Kit 60 Amp Cooling Fan Relay Switch Kit 4 Pin Waterproof Relay Kit - Efficient Cooling: This dual electric fan relay kit is the perfect solution for your vehicle’s cooling system. Compatible with 10", 12", 14", and 16" fans, it includes a 60 amp relay, 4-pin relay, and relay switch. Whether you're upgrading your system with an electric fan conversion kit or replacing old components, this electric radiator fan kit ensures efficient cooling and prevents engine overheating, providing reliable performance when you need it most
- Temperature-Controlled: With a 185°F on / 175°F off thermostat switch, this kit ensures your fans activate at 185°F and turn off at 175°F. The cooling fan relay helps maintain your engine’s temperature within the optimal range, preventing overheating. The radiator fan switch ensures the fan only operates when needed, enhancing performance and efficiency. This cooling fan switch prolongs engine life and improves overall cooling, making it perfect for keeping your engine cool
- Easy Installation: Installation is made simple with the included wiring diagram. The electric fan wiring kit provides all the components you need: red to +12VDC, blue to the fan relay, yellow to ignition, and grey to the cooling fan switch. Whether you need a dual fan relay kit or are working with a single fan setup, this kit is designed for versatile use. All necessary parts are included, from fan harness with relay to fuse holders, ensuring a hassle-free installation
- Waterproof Fuse Holders: Built to withstand extreme conditions, this electric fan controller kit features waterproof fuse holders and reliable components. The cooling fan control relay is durable and operates in all weather, ensuring your fans work when needed. The included radiator fan controller and dual electric fan relay kit offer precise cooling control, keeping your engine temperature in check, even in challenging environments. It’s built to last and perform under demanding conditions
- Widely Compatible: This dual electric fan relay kit is compatible with various vehicles, including trucks, cars, boats, and more. It’s ideal for use in a cooler kit with thermostat or as a radiator fan mounting kit. The auto fan controller provides precise temperature control, while the electric fan kit works perfectly for both single and dual fan setups. Whether upgrading your cooling system or replacing components, this kit is versatile and designed for wide application
Bestseller No. 3
ZOZOMOTORS Dual Electric Fan Relay Kit Radiator Electric Cooling Fan Thermostat Kit Temperature Sensor Switch 185 On 175 Off, 40 AMP Waterproof Relay Kit - All wires are clearly labeled and color-coded. And an easy-to-follow wiring diagram is included in the package. RED to 12VDC Positive Battery Terminal, COFFEE to Fan Positive, BLACK to Sending Unit, GREY to Ignition per wiring diagram. Direct replacement part fits 10, 12, 14, and 16 inch cooling fans
- Temperature switch turns on fan approximately at 185 Degrees and Off at 175 Degrees. The temp sensor has a 3/8 inch pipe thread, and a 1/2 inch adapter included. Please note: you need to run a 160 degrees thermostat when running this kit with this temp switch. If you got a thermostat above 160 degrees (say 180 thermostat) , your engine will not get cool enough for the fans to shut off
- This electric cooling fan kit comes with everything you need, includes 40A relay, wiring harness, temperature switch, 3/8 inch to 1/2 inch adapter, inline waterproof fuse holder, fuses, 1 spade connector for the temp sensor, 8 ring terminals, and 4 wire connectors
- The temperature switch supplied with this kit is OE style to mount in the cylinder head of the engine or any water jacket if needed. The temperature switch MUST be grounded through the threads to the engine in order for it to work, and the engine MUST be grounded
- This relay kit is enough to run two medium profile or low profile cooling fans. For high profile fans, you can use ZOZOMOTORS heavy duty relay kit P/N 30247. Or crimp/solder bigger wires yourself for pin 30 & 87 to carry enough load for the fan (10 gauge wire - 30 Amps)
SaleBestseller No. 4
Ronybuy Electric Fan Relay Kit 40 AMP Automotive Relay Thermostat Switch Kit for Radiators Fans Temperature Sensor Switch 185 On 175 Off, Waterproof 12V Electric Cooling Fan Relay Switch Wiring Kit - 【Compatibility】The 40 AMP waterproof electric radiator fan relay kit fits 10,12,14,16 inch cooling fans. Fit for engines 265 283 305 307 327 350 383 400 396 402 427 454 472 502 260 289 302 351W 347 352 360 390 406 427 428 429 460 351C 351M 400M 273 318 340 360 361 383 400 413 426W 440 455 330 326 351M 400M 273 318 340 360 361 383 400 413 426W
- 【Easy Installation】Just follow the wiring diagram to wire your electric radiator cooling fans relay kit. RED to 12VDC Positive Battery Terminal, COFFEE to Fan Positive, BLACK to Ignition, GREY to Sending Unit.
- 【Specifications】This electric fan relay wiring kit is 40 AMP and 12V. The thermostat swtich is 3/8" NPT pipe thread with 1/2" adapter included, it turns on at 185 and off at 175 Degrees. The relay is waterproof and can work in any harsh conditions.
- 【Package Include】Includes everything you need: 1x 40A relay with harness;1x 3/8" thermostat switch;1x 3/8" to 1/2" adapter;1x inline fuse holder;1x 20 Amp fuse;2x wire connectors;4x ring terminals;1x wiring diagram
- 【Important】The thermostat MUST be grounded through the threads to the engine in order for it to work, and the engine MUST be grounded. If you mount high-profile fans, be sure to crimp or solder bigger wires to it since the 14AWG wires (15 amps) are not big enough for high amps draw.
Bestseller No. 5
Electric Cooling Fan Wire Harness Kit 185 Degree On 165 Thermostat Switch 40/50 AMP Relay - Fit for: 2 x 8 inch Fans, 2 x 10 Inch Fans, 2 x 12 Inch Fans, 2 x 14 Inch Fans, Single 8 Inch Fan, Single 10 Inch Fan,Single 12 Inch Fan, Single 14 Inch Fan, Single 16 Inch Fan (Two 16 inch fans, need 2 Relay Kits)
- Work on 12 volt Electric Fan Wiring Harness, Relay, Sending Unit & Circuit Breaker 12V
- Turn your Electric Cooling Fan ON at 185 degrees and OFF at 165 degrees
- Package list please see the detailed Product Description, and will come with the install instruction.
Bestseller No. 6
Dual Electric Cooling Fan Wiring Install Kit 185 Degree On 165 Off Engine Fan Thermostat Temperature Switch 40/50 AMP Relay Kit - Ⓞ Works for: 2 x 8 inch Fans 2 x 10 Inch Fans 2 x 12 Inch Fans 2 x 14 Inch Fans Single 8 Inch Fan Single 10 Inch Fan Single 12 Inch Fan Single 14 Inch Fan Single 16 Inch Fan (Two 16 inch fans, need 2 Relay Kits)
- Ⓞ This kit includes a waterproof relay, 3/8" （or1/2"）NPT thermostatic switch (185* on / 165* off), and fuse block. For single fan setups. Perfect for your muscle car, 4x4, or hot rod!
- Ⓞ Scorpion 12 volt Electric Fan Wiring Harness, Relay, Sending Unit & Circuit Breaker 12V
- Ⓞ These are perfect to use to turn your Electric Cooling Fan on & off
- Ⓞ The 40 Amp Relay Helps take the Load & Aids in Starting the Fan with less Amps Also includes an Overload Circuit Breaker
Bestseller No. 7
Dual Electric Fan Relay Kit, Automotive Wiring Kit, 60 Amp Cooling Fan Relay Switch Kit 185 On 175 Off Temperature Sensor Switch 4 Pin Waterproof Relay Kit, Inline Fuse Holder is not Included - 【Fitment】 This dual fan relay kit comes with a 185°F on/175°F off temperature switch to ensure that the fan starts at 185°F and turns off at 175°F. Cooling fan relays help keep engine temperature within optimal range and prevent overheating. The radiator fan switch ensures that the fan only operates when needed, thereby improving performance and efficiency
- 【Adaptation】This fan relay kit is compatible with a variety of vehicles, including trucks, cars, ships, and more. Compatible with 8-inch, 10-inch, 12-inch, 14-inch and 16-inch fans for 265, 283, 305, 307, 327, 350, 383, 400, 396, 402, 427, 454, 472, 502, 260, 289, 302, 351W, 347, 352, 360, 390, 406, 427, 428, 429, 460, 351C, 351M, 400M, 273, 318, 340, 360, 361, 383, 400, 413, 426W, 440, 455, 330, 326 engines
- 【Easy installation】All wires are clearly marked and distinguished by color, and a simple and easy-to-understand wiring diagram is included in the package. We have a full set of accessories to suit the needs of all situations. Attention: When running this kit with this temperature switch, you need to use a 160 degree Fahrenheit thermostat. If you use a thermostat above 160 degrees Fahrenheit, your engine will not cool enough to turn off the fan
- 【Package Includes】 The kit comes with everything you need: 1x wiring diagram, 2x 60A relay with 3m Wiring Harness, 1x thermostat switch, 1x 3/8" to 1/2" adapter, 4x 20 amp fuse, 1x spade connector for the temp sensor, 8x ring terminal, 4x wire connectors, 10x plastic cable ties, 2x Relay mounting screws, more detailed see the picture on the details page
- 【SERVICE】offers 1 year product quality support to our customers. If you are uncertain of any problems, please contact us
Bestseller No. 8
Taigoehua Electric Fan Wiring Install Kit Complete Thermostat 50 Amp Relay 185° SBC BBC - Complete brand new electric fan installtion kit
- FITS 265 283 305 307 327 350 383 400 396 402 427 454 472 502 260 289 302 351W 347 352 360 390 406 427 428 429 460 351C 351M 400M 273 318 340 360 361 383 400 413 426W 440 455 330 326 ENGINES
- Includes a 50 AMP relay,185 degree thermostat,ciruit breaker with waterproof cap,48" of 12-18 gauge wire as well as assorted beass terminals & connectors
- Thermostat goes on at 185 degrees and shuts off at 170 degrees
- Comes complete with instructions with easy to read wiring diagrams
Bestseller No. 9
Ronybuy Dual Electric Fan Relay Kit 40 AMP Automotive Relay Thermostat Switch Kit for Radiators Fans Temperature Sensor Switch 185 On 175 Off, 12V Electric Cooling Radiator Fan Relay Switch Wiring Kit - 【Compatibility】The dual electric radiator fan relay kit fits 10,12,14,16 inch cooling fans. Fit for engines 265 283 305 307 327 350 383 400 396 402 427 454 472 502 260 289 302 351W 347 352 360 390 406 427 428 429 460 351C 351M 400M 273 318 340 360 361 383 400 413 426W 440 455 330 326 351M 400M 273 318 340 360 361 383 400 413 426W
- 【Easy Installation】Just follow the wiring diagram to wire your dual electric fans relay kit. RED to 12VDC Positive Battery Terminal, COFFEE to Fan Positive, BLACK to Ignition, GREY to Sending Unit.
- 【Specifications】This electric fan relay wiring kit is 40 AMP and 12V. The thermostat swtich is 3/8" NPT pipe thread with 1/2" adapter included, it turns on at 185 and off at 175 Degrees. The relay is waterproof so it can work in any harsh conditions.
- 【Package Include】Includes everything you need: 2x 40A relay with harness;1x 3/8" thermostat switch;1x 3/8" to 1/2" adapter;2x inline fuse holder;2x 20 Amp fuse;4x wire connectors;8x ring terminals;1x wiring diagram
- 【Important】The thermostat MUST be grounded through the threads to the engine in order for it to work, and the engine MUST be grounded. If you mount high-profile fans, be sure to crimp or solder bigger wires to it since the 14AWG wires (15 amps) are not big enough for high amps draw.
SaleBestseller No. 10
185-200 Degree Electric Cooling Fan Thermostat Kit Electric Fan Relay Kit Temp Sensor Temperature Switch 50 60 AMP Relay Kit - This electric cooling fan thermostat kit is set up to turn your electric fan on at 200 degrees and shut off at 185 degrees and will work with any 12 volt system.
- Compatible for 265 283 305 307 327 350 383 400 396 402 427 454 472 502 260 289 302 351W 347 352 360 390 406 427 428 429 460 351C 351M 400M 273 318 340 360 361 383 400 413 426W 440 455 330 326 engines.
- 185-200 degree electric cooling fan relay kit for your cooling system. Sending Unit Thread Size: 3/8-18 NPT, Voltage: 12 V.
- Package included a 50 AMP relay, thermostat, ciruit breaker, wiring harness, temperature switch，terminals and mounting screws.
- Please carefully check your vehicle model before purchase. If you have any problems with the electric fan relay kit please reach out to us anytime
How Do We Test Electric Fan Wiring Kit
If you’re looking for an unbiased opinion on any product, we’ve got your back. Our reviews are rigorous and thorough – taking all factors into account, including design, features, price-to something else that matters most in making an informed decision before purchasing one of these items!
Factors to Consider Before Purchasing Electric Fan Wiring Kit
What’s the point of a buying guide if you don’t know what factors to consider before purchasing electric fan wiring kit?
- Satisfy your need
- Features & Specifications
- Quality & Durability
- Brand Value
- Customer Reviews & Ratings
- Price
- Customer Service
You may be wondering why you need to consider some factors about a electric fan wiring kit before purchasing. It’s because there are so many things that can go into making your decision, and knowing all of them upfront will help keep any surprises later on in life!
What’s The Best Place To Purchase Electric Fan Wiring Kit
Online shopping is the way of 2026, and if you want to make sure that your purchase will be an excellent one, then there’s no better place than online. You’ll have access to so many more products in different shapes, sizes, colors, and flavors brands with unbeatable prices.
There are so many different options when it comes to choosing a new electric fan wiring kit, and we truly believe that you should do your research before making such an important purchase. The questions might include:
- Should I buy a new, used, or refurbished electric fan wiring kit?
- Do you really need the high quality electric fan wiring kit there is?
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- Best time to buy a electric fan wiring kit?
- What are the benefits of buying electric fan wiring kit?
- Why is it critical to invest in a good in today’s market, particularly the best one?
In our opinion, investing in a good, high-quality electric fan wiring kit will make you feel confident about your purchase. You can tell that the company put effort into making sure it was top-notch and took their time with designing everything from packaging to graphics for marketing purposes because this makes them seem more reliable than competitors who don’t invest so much money on these things (especially if they’re cheap). Plus, having quality materials ensures longevity which is always nice.
Tips For Being A Smart Online Shopper
When shopping for a product online, be sure to read the reviews before making a purchase. This can give you a good idea of what to expect from the product and can help you decide if it’s the right fit for your needs. Additionally, be sure to check the return policy and shipping times before buying anything. This way, if you’re not happy with the product, you can easily return it without any hassle. And if you need the product quickly, you’ll know that it will arrive in a timely manner.
When looking for a electric fan wiring kit, be sure to compare prices from different retailers. This way, you can be sure you’re getting the best deal possible. Additionally, be sure to read the fine print before making any purchase, as some retailers may have hidden fees or charges. By taking the time to do your research, you can be sure you’re getting the best possible deal on the product you want.
These are just a few things to keep in mind when shopping for a product. By taking the time to consider your needs and doing your research, you can be sure you’re getting the best possible product for your needs. And if you have any questions, be sure to contact customer service or the retailer before making your purchase.
FAQs About Best Electric Fan Wiring Kit
What is More Important: a Good Product or a Good After-sales Service?
When it comes to choosing a electric fan wiring kit, many people prioritize the quality of the product itself. However, after-sales service can be just as important, especially if something goes wrong with the product. So when it comes to choosing a product, it’s important to weigh both factors and decide which is more important to you. If quality is your main concern, be sure to choose a product that comes from a reputable brand and has good reviews. However, if you’re more concerned with after-sales service, be sure to choose a product from a company that offers excellent customer service.
How to Save Money When Buying Online?
When shopping for a electric fan wiring kit online, there are a few things you can do to save money. First, be sure to compare prices from different retailers before making a purchase. This way, you can be sure you’re getting the best deal possible. Additionally, be sure to read the fine print before making any purchase, as some retailers may have hidden fees or charges. By taking the time to do your research, you can be sure you’re getting the best possible deal on the product you want. Additionally, you can also sign up for Amazon Prime, which gives you access to exclusive deals and free shipping on many items. So if you’re looking for the best possible deal on Amazon.
Bottom Line
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As a prospective buyer, it’s important that you research the product thoroughly before purchasing. There are many online forums where people can share their knowledge and experiences with different products in order to help guide your decision on what is best for yourself.
With our guide, you can find the best electric fan wiring kit available on the e-commerce market. We make use of Big Data and AI data to compile this list, so it is highly accurate.
The process of creating this content was challenging, but our team persevered through it to bring you the best possible results. We read user reviews and looked at what buyers think about each product so that your buying experience will be satisfying.
