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The Best dual fan relay kit of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best dual fan relay kit of 2022. Check our ranking below.

2,404 Reviews Scanned

Rank No. #1
ZOZOMOTORS Dual Electric Fan Relay Kit Radiator Electric Fan Thermostat Kit Temperature Sensor Switch 185 On 175 Off, Automotive 40 AMP Cooling Fan Relay Switch Kit 4 Pin, Dual Electric Fan Wiring Kit
  • Easy to follow wiring diagram simplify wiring your dual electric fans. RED to 12VDC Positive Battery Terminal, COFFEE to Fan Positive, BLACK to Ignition, GREY to Sending Unit 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
  • This electric cooling fan thermostat kit comes with everything you need, includes 40A relay, wiring harness, thermostat switch, 3/8 inch to 1/2 inch adapter, inline fuse holder, 2 20amp fuse, 1 spade connector for the temp sensor, 8 ring terminals, and 4 wire connectors
  • The thermostat supplied with this kit is OE style to mount in the cylinder head of the engine or any water jacket if needed. 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 intend to mount high-profile fans, you could crimp or solder bigger wires to it. The 14AWG wires (15 amps) are not bigger enough for high amps draw
Rank No. #2
Derale 16765 Electric Fan Dual Relay Wire Harness, Black
  • Rated at maximum 25 amp continuous draw per each relay (50 amp total)
  • Fuses not included
  • AC override circuit included for each relay
Rank No. #3
Woopeey Electric Dual Fan Upgrade Wiring Harness Fit for GM 1999–2006 ECU Control Electric Cooling Fan Wire Harness Kit Replace OE # 7L5533A226T
  • 【Compatibillity】-The Electric Cooling Fan Wire Harness Kit Fit for GM 1999–2006 ECU Control.
  • 【Replace OE Part Number】-Cross Reference Part Numbers: 7L5533A226T, please check OEM part number and compatibility to ensure you purchased correct items!
  • 【High Quality Material】-Made of durable corrosion and dust resistant material. 100% tested and meets or exceeds OEM specifications.
  • 【Function】-You can use this harness to pin your electric fan upgrade directly through the ECU and let it control the fans (ECU does need flashed). The harness is setup to control your dual fan combo and comes wired with 05+ GM truck plugs.
  • 【Package Contents】- 1 X ECU Control Dual Electric Fan Upgrade Wiring Harness Kit. Professional Installation is Highly Recommended (No Instructions Included).
Rank No. #4
Dual Electric Fan Wiring Kit Dual Electric Fan Relay Kit with Thermostat Radiator Fan Temperature Sensor Switch 185 On 175 Off, Electric Cooling Fan Thermostat Kit 4 Pin, 40 AMP Waterproof Relay Kit
  • Installation: For dual fan wiring, you would need two of this relay kit. Easy to follow wiring diagram simplify wiring your electric fans. RED to 12VDC positive battery terminal, COFFEE to Fan Positive, BLACK to Ignition, GREY to Sending Unit per wiring diagram. Direct replacement part fits 10, 12, 14, and 16 inch cooling fans.
  • Package Include: This electric cooling fan thermostat kit contains everything you need, including 40A relay, wiring harness, thermostat switch, 3/8" to 1/2" adapter, in-line fuse holder, 2 20 amp fuses, 8 ring terminals and 4-wire connector. Temperature switch turns on fan approximately at 185 Degrees and Off at 175 Degrees.
  • NOTE: The thermostat MUST be grounded through the threads to the engine in order for it to work, and the engine MUST be grounded. The thermostat supplied with this kit is OE style to mount in the cylinder head of the engine or any water jacket if needed.
  • NOTE: You can crimp or solder larger wires if you plan to install a high-spec fan. 14 AWG (15 amp) wire not large enough for high current consumption.
  • Ensure: If there is any problem with the product, please do not hesitate to contact us, we will help you solve the problem.
Rank No. #5
Dual Electric Fan Relay Kit - 185/175 Degree Engine Electric Fan Relay Kit Radiator Electric Fan Thermostat Kit Temperature Sensor Switch 40 AMP Waterproof Automotive Radiator Fan Wiring Kit
  • UPGRADED ELECTRICFAN RELAY KIT - This Radiator Electric Cooling Fan Wiring Install Kit comes with everything you need, Include 1x Wiring Diagram, 1x 40A relay with wiring harness, 1x 185'F on-175'F off temperature switch, 1x 3/8" Thread-In Probe, 1x 3/8" to 1/2" adapter, 1x inline fuse holder, 1x 20 amp fuse, 4x ring terminals, 2x fan pigtail connectors. In addition, include 1 x radiator fan mounting kit which contains 4 plastic rods with hardware. 
  • INCIDENTAL ELECTRIC FAN MOUNTING KIT - Electric Radiator Fan Mounting Kit Compatible for Electric Cooling Fan and Transmission Cooler. Equipped with protective springs: The set contains 4 protective springs, which can prevent the bottom of the installation from breaking. Fast and effective installation saves you valuable time.
  • INSTALLATION OF ELECTRIC FAN WIRING KIT - electric cooling fan thermostat kit comes with installation instructions. Connect the color-coded wires refer wiring diagram. Red to +12VDC, Coffee to fan positive, black to ignition, GREY to sending unit. Direct replacement part fits 10, 12, 14, and 16 inch cooling fans. For dual fan wiring, you would need two of this relay kit.
  • NOTICE OF RADIATOR FAN MOUNTING KIT - Please crimp or solder bigger wires to it If you intend to mount high-profile fans, the 14AWG wires (15 amps) are not bigger enough for high amps draw. if you get any problems with our this Engine Fan Thermostat Temperature Switch 40 amp Relay Kit, please contact us in the first time.
  • WATERPROOF RELAY WIRING 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. The thermostat supplied with this kit is OE style to mount in the cylinder head of the engine or any water jacket if needed.
Rank No. #6
Painless Performance 30117 Dual Activation, Dual Electric Fan Relay Kit with Thermostatic Switch (On 185/Off 175)
  • Dual activation cooling fan relay will turn your cooling fans on when the engine reaches the preset temperature of the thermostatic switch mounted in the engine head or when the A/C is turned on
  • Ideal for installing air conditioning in your project car
  • Features simple to use Posi-taps for the ignition and A/C compressor connections
  • Kit includes: Three 40-amp relays with mounting bases & wiring, fuse holder & 70-amp fuse, two LT1/LS1 fan connectors, thermostatic switch, adapter and insulated terminals
Rank No. #7
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
SaleRank No. #8
Dual Electric Cooling Fan Wire Harness Kit 185 On 165 Off Thermostat 50 AMP Relay New
  • Condition:brand new and well packaged
  • Direct Replacement the old parts
  • COMES ON at 185 degrees and TURNS OFF at 165 degrees
  • Included in this Relay kit: 185 Degree Thermostat Switch 1 Relay Wire Harness 1 3/8" NPT Thread-In Probe 2 Ring Terminals 2 Fan Pigtail Connectors Included 1 Fuse Holder 3/8" to 1/2" Adapter 30 & 40 amp Fuses,English instruction
  • 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)
Rank No. #9
Dual Electric Fan Relay Kit Radiator Electric Fan Thermostat Kit Temperature Sensor Switch 185 On 175 Off, Automotive 40 AMP Cooling Fan Relay Switch Kit 4 Pin Fan Wiring Kit
  • Easy to follow wiring diagram simplify wiring your dual electric fans.Direct replacement part fit for 10, 12, 14 and 16 inch cooling fans
  • Dual Electric Fan Relay Kit including: 40A relay, thermostat switch, wiring harness, 3/8 inch to 1/2 inch adapter, inline fuse holder, 2 20amp fuse, 1 spade connector for the temp sensor, 8 ring terminals, and 4 wire connectors
  • Note:Please crimp or solder bigger wires to it If you intend to mount high-profile fans,the 14AWG wires (15 amps) are not bigger enough for high amps draw
  • Electric Radiator Fan Mounting Kit Compatible for Electric Cooling Fan and Transmission Cooler. Equipped with protective springs: The set contains 4 protective springs, which can prevent the bottom of the installation from breaking
  • Electric Fan Relay Kit Fit for 10", 12",14" and 16" fans.For dual fan wiring, you would need two of this relay kit
Rank No. #10
Painless Performance 30116 Dual Activation, Dual Electric Fan Relay Kit with Thermostatic Switch (On 195/Off 185)
  • Dual activation cooling fan relay will turn your cooling fans on when the engine reaches the preset temperature of the thermostatic switch mounted in the engine head or when the A/C is turned on
  • Ideal for installing air conditioning in your project car
  • Features simple to use Posi-taps for the ignition and A/C compressor connections
  • Kit includes: Three 40-amp relays with mounting bases & wiring, fuse holder & 70-amp fuse, two LT1/LS1 fan connectors, thermostatic switch, adapter and insulated terminals
  • Thermostatic switch turns on at 195 degrees and off at 185 degrees; Thread size: 3/8"-18NPT; 1/2" NPT to 3/8" NPT adapter provided

Last update on 2023-05-22 / Affiliate links / Images from Amazon Product Advertising API

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  3. Specifications: How powerful they are can be measured.
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  5. Customer Ratings: Number ratings grade dual fan relay kit objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their dual fan relay kit.
  7. Product Quality: You don’t always get what you pay for with an dual fan relay kit, sometimes less, and sometimes more.
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