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Dual Electric Fan Relay Kit Radiator Electric Cooling Fan Thermostat Kit Temperature Sensor Switch 185 On 175 Off, 40 AMP Waterproof Relay Kit

  • Based on 518 reviews
Condition: New
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Availability: In Stock.
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Arrives Saturday, Aug 8
Order within 15 hours and 16 minutes
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Features

  • 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)

Description

Please note: You need to run a 160 degree 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 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 fans (10 gauge wire - 30 Amps) If you want to turn on the fans when A/C compressor activates, you would need an additional relay kit and follow the steps below: 1x Wiring Diagram 2x 40A Relay with Wiring Harness 1x 3/8" Temperature Switch 185'F On - 175'F Off 1x 3/8" to 1/2" Adapter 1x Spade Connector for Temp Switch (Heat Shrinkable) 2x Inline Waterproof Fuse Holder 2x 15A Fuse (Low Profile Fans), 2x 20A Fuse (Medium Profile Fans), 2x 30A Fuse (High Profile Fans) 8x Ring Terminals (Heat Shrinkable ) 4x Wire Connectors (Heat Shrinkable) 2x Mounting Screws

Connector Type: Crimp


Contact Material: Silver, Copper, Or Alloy


Contact Type: Normally Open


Current Rating: 40 Amps


Mounting Type: Panel Mount


Connector Type: Crimp


Contact Type: Normally Open


Current Rating: 40 Amps


Mounting Type: Panel Mount


Operation Mode: Automatic


Wattage: 480 watts


Coil Voltage: 12 Volts


Contact Current Rating: 40 Amps


Lower Temperature Rating: 185 Degrees Fahrenheit


Maximum Switching Current: 40 Amps


Minimum Switching Voltage: 12 Volts (DC)


Contact Material: Silver, Copper, Or Alloy


Brand Name: ZOZOMOTORS


Part Number: JDQ2DG


Model: JDQ2DG


Item Weight: 8.11 Ounces


Manufacturer: MAXCOOLING


Specification Met: OE


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Aug 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Nice product
Nice and clean setup works good
Reviewed in the United States on January 8, 2026 by chad barribo

  • Electric fan relay kit
Exactly what I need for my vehicle fix my fan problem
Reviewed in the United States on January 17, 2026 by Roger Flores

  • super awesome lead length.
super awesome that these have 24" of leads to the relays.
Reviewed in the United States on March 2, 2026 by sean o.

  • worked good
good
Reviewed in the United States on April 21, 2026 by Dale Way

  • Don't skimp well worth it
Work great when I wired up my brushless electric fans for the hotrod.
Reviewed in the United States on August 18, 2025 by Arthur

  • So far so good
Haven't installed it yet but everything seems to be of good quality
Reviewed in the United States on April 29, 2025 by Dalton W.

  • Relay fan switch
The product was great
Reviewed in the United States on September 24, 2025 by Greg green

  • Great quality
Easy install and great quality.
Reviewed in the United States on April 21, 2025 by James Robert Brock

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