Racing Cooling System Switches, Sensors & Relays

Racing Cooling System Switches, Sensors & Relays
  • Painless Performance® - Adjustable Electric Fan Thermostat
    Painless Performance®Adjustable Electric Fan Thermostat
    0
    # 791244066
    Adjustable Electric Fan Thermostat by Painless Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement...
    High quality at an affordable priceBuilt to match your exact requirements
    $54.99 - $86.99
  • Painless Performance® - Dual Activation Electric Fan Relay Kit
    Painless Performance®Dual Activation Electric Fan Relay Kit
    0
    # 791242066
    Dual Activation Electric Fan Relay Kit by Painless Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient...
    High quality at an affordable priceBuilt to match your exact requirements
    $57.99 - $59.99
  • Painless Performance® - Fan-Thom II Electric Fan Relay Kit
    Painless Performance®Fan-Thom II Electric Fan Relay Kit
    0
    # 791247070
    Fan-Thom II Electric Fan Relay Kit by Painless Performance®. Relay activation by grounding relay coil can be provided by any Powertrain Control Module. Provides constant voltage, protects from voltage and amperage spikes and prevents...
    High quality at an affordable priceBuilt to match your exact requirements
    $45.52 - $55.65
  • Derale Performance® - Adjustable Electric Fan Controller
    Derale Performance®Adjustable Electric Fan Controller
    0
    # 2941918794
    Adjustable Electric Fan Controller by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance has never compromised on the...
    Adjustable turn-on temperature from 150-240 Degree FTurn-off temperature is preset at 10 Degree F below turn-on temperature
    $65.99
  • Derale Performance® - High Amperage Adjustable Dual Electric Fan Controller
    Derale Performance®High Amperage Adjustable Dual Electric Fan Controller
    0
    # 2941885212
    High Amperage Adjustable Dual Electric Fan Controller by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance has never...
    Adjustable turn-on temperature from 150-240 Degree FRated at a maximum 35 amps per fan
    $139.99
  • Derale Performance® - High Amperage Adjustable Single Electric Fan Controller
    Derale Performance®High Amperage Adjustable Single Electric Fan Controller
    0
    # 2941849212
    High Amperage Adjustable Single Electric Fan Controller by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance has...
    Adjustable turn-on temperature from 150-240 Degree FRated at a maximum 35 amps
    $109.99
  • Derale Performance® - Premium Single Stage 180 Degree F Fan Controller
    Derale Performance®Premium Single Stage 180 Degree F Fan Controller
    0
    # 2941912788
    Premium Single Stage 180 Degree F Fan Controller by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance has never...
    180 Degree F preset turn-on temperatureTurn-off temperature is preset at 165 Degree F
    $34.99
  • Derale Performance® - Standard Single Stage 180 Degree F Fan Controller
    Derale Performance®Standard Single Stage 180 Degree F Fan Controller
    0
    # 2941847212
    Standard Single Stage 180 Degree F Fan Controller by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance has never...
    Designed with quality and performance in mindNew ground in the industry of electric fan controllers
    $20.19 - $31.59
  • Derale Performance® - Dyno-Cool Electric Fan and Mechanical Fan Controller Kit
    Derale Performance®Dyno-Cool Electric Fan and Mechanical Fan Controller Kit
    0
    # 2941878212
    Dyno-Cool Electric Fan and Mechanical Fan Controller Kit by Derale Performance®. A great auxiliary fan or primary cooling fan for small to intermediate cars and trucks. Using high output electric fans incorporated into an engineered...
    $67.29 - $116.29
  • Derale Performance® - Fan Controller Probe
    Derale Performance®Fan Controller Probe
    0
    # 2941905789
    Fan Controller Probe by Derale Performance®. Electric Fan Probe Perfect for your vehicle. This product features premium quality and will perform better than advertised. Derale Performance has never compromised on the quality and neither...
    Developed to enhance your driving experienceEnsures impeccable quality and great durability
    $13.28 - $19.99
  • Derale Performance® - Fan Switch Relay Kit
    Derale Performance®Fan Switch Relay Kit
    0
    # 2941940788
    Fan Switch Relay Kit by Derale Performance®. Derale Performance has never compromised on the quality and neither should you. It crafted this product to the strictest industry requirements with the use of first-rate materials to ensure...
    Fits into either a 3/8" NPT or 1/8" NPT port3/8" NPT x 1/8" NPT bushing included
    $34.99
  • Derale Performance® - Fan Switch Thermostat
    Derale Performance®Fan Switch Thermostat
    0
    # 2941864214
    Fan Switch Thermostat by Derale Performance®. Derale Performance has never compromised on the quality and neither should you. It crafted this product to the strictest industry requirements with the use of first-rate materials to ensure...
    Fits into either a 3/8" NPT or 1/8" NPT port3/8" NPT x 1/8" NPT bushing included
    $29.99
  • Painless Performance® - Adjustable Electric Fan Thermostat
    Painless Performance®Adjustable Electric Fan Thermostat
    0
    # 5683135196
    Adjustable Electric Fan Thermostat by Painless Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement...
    High quality at an affordable priceBuilt to match your exact requirements
    $54.99 - $86.99
  • Painless Performance® - Dual Activation Electric Fan Relay Kit
    Painless Performance®Dual Activation Electric Fan Relay Kit
    0
    # 5683007492
    Dual Activation Electric Fan Relay Kit by Painless Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient...
    High quality at an affordable priceBuilt to match your exact requirements
    $57.99 - $59.99
  • Painless Performance® - Dual Fan-Dual Activation Fan Relay Kit
    Painless Performance®Dual Fan-Dual Activation Fan Relay Kit
    0
    # 5683012502
    Dual Fan-Dual Activation Fan Relay Kit by Painless Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient...
    High quality at an affordable priceBuilt to match your exact requirements
    $119.99 - $125.99
  • Painless Performance® - Dual Fan-Dual Activation Fan Relay Kit
    Painless Performance®Dual Fan-Dual Activation Fan Relay Kit
    0
    # 791284926
    Dual Fan-Dual Activation Fan Relay Kit by Painless Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient...
    High quality at an affordable priceBuilt to match your exact requirements
    $119.99 - $125.99
  • Painless Performance® - Fan Relay with Thermostatic Switch
    Painless Performance®Fan Relay with Thermostatic Switch
    0
    # 5683013499
    Fan Relay with Thermostatic Switch by Painless Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement...
    High quality at an affordable priceBuilt to match your exact requirements
    $46.99 - $49.99
  • Painless Performance® - Fan Relay with Thermostatic Switch
    Painless Performance®Fan Relay with Thermostatic Switch
    0
    # 791256927
    Fan Relay with Thermostatic Switch by Painless Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement...
    High quality at an affordable priceBuilt to match your exact requirements
    $46.99 - $49.99
  • Painless Performance® - Fan-Thom II Electric Fan Relay Kit
    Painless Performance®Fan-Thom II Electric Fan Relay Kit
    0
    # 5683055489
    Fan-Thom II Electric Fan Relay Kit by Painless Performance®. Relay activation by grounding relay coil can be provided by any Powertrain Control Module. Provides constant voltage, protects from voltage and amperage spikes and prevents...
    High quality at an affordable priceBuilt to match your exact requirements
    $45.52 - $55.65
  • Painless Performance® - Weatherproof Fan Relay Kit
    Painless Performance®Weatherproof Fan Relay Kit
    0
    # 5683169199
    Weatherproof Fan Relay Kit by Painless Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement product...
    High quality at an affordable priceBuilt to match your exact requirements
    $38.99 - $66.99
  • Painless Performance® - Weatherproof Fan Relay Kit
    Painless Performance®Weatherproof Fan Relay Kit
    0
    # 791274925
    Weatherproof Fan Relay Kit by Painless Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient replacement product...
    High quality at an affordable priceBuilt to match your exact requirements
    $38.99 - $66.99
  • Racing Power Company® - Adjustable Electric Fan Controller Kit
    Racing Power Company®Adjustable Electric Fan Controller Kit (R3106)
    0
    # mpn4498741225
    Adjustable Electric Fan Controller Kit by Racing Power Company®. Crafted with expertise and care, this product sports the elaborate design and features unsurpassed quality. It is made using smart materials and leading technological...
    One-of-a-kind style will help customize your autoWill deliver unparalleled levels of durability
    $42.29
  • Derale Performance® - Adjustable Electric Fan Controller
    Derale Performance®Adjustable Electric Fan Controller (16759)
    0
    # mpn358483427
    Adjustable Electric Fan Controller (16759) by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance has never...
    Adjustable turn-on temperature from 150-240 Degree FTurn-off temperature is preset at 10 Degree F below turn-on temperature
    $65.99
  • Painless Performance® - Dual Fan-Dual Activation Fan Relay Kit
    Painless Performance®Dual Fan-Dual Activation Fan Relay Kit (30117)
    0
    # mpn359117870
    Dual Fan-Dual Activation Fan Relay Kit (30117) by Painless Performance®. Increase the life of your vehicle's engine by keeping your cooling system in top condition. Replace your faulty engine cooling component with this highly efficient...
    High quality at an affordable priceBuilt to match your exact requirements
    $119.99
  • Derale Performance® - High Amperage Adjustable Single Electric Fan Controller
    Derale Performance®High Amperage Adjustable Single Electric Fan Controller (16779)
    0
    # mpn358483433
    High Amperage Adjustable Single Electric Fan Controller (16779) by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance...
    Adjustable turn-on temperature from 150-240 Degree FRated at a maximum 35 amps
    $109.99
  • Derale Performance® - 180 Degree F Thread In Replacement Controller
    Derale Performance®180 Degree F Thread In Replacement Controller (16728)
    0
    # mpn358483415
    180 Degree F Thread In Replacement Controller by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance has never...
    Designed with quality and performance in mindNew ground in the industry of electric fan controllers
    $19.99
  • Derale Performance® - Adjustable Electric Fan Controller
    Derale Performance®Adjustable Electric Fan Controller (16749)
    0
    # mpn358483425
    Adjustable Electric Fan Controller (16749) by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance has never...
    Adjustable turn-on temperature from 150-240 Degree FTurn-off temperature is preset at 10 Degree F below turn-on temperature
    $65.99
  • Derale Performance® - Adjustable Electric Mechanical Fan Controller
    Derale Performance®Adjustable Electric Mechanical Fan Controller (16769)
    0
    # mpn358483431
    Adjustable Electric Mechanical Fan Controller by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance has never...
    Adjustable turn-on temperature from 32-240 Degree FTurn-off temperature is preset at 10 Degree F below turn-on temperature
    $36.99
  • Derale Performance® - High Amperage Adjustable Dual Electric Fan Controller
    Derale Performance®High Amperage Adjustable Dual Electric Fan Controller (16789)
    0
    # mpn358483435
    High Amperage Adjustable Dual Electric Fan Controller (16789) by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance...
    Adjustable turn-on temperature from 150-240 Degree FRated at a maximum 35 amps per fan
    $139.99
  • Derale Performance® - High Amperage Adjustable Dual Electric Fan Controller
    Derale Performance®High Amperage Adjustable Dual Electric Fan Controller (16788)
    0
    # mpn358483434
    High Amperage Adjustable Dual Electric Fan Controller (16788) by Derale Performance®. Designed with quality and performance in mind, this Fan Controller breaks new ground in the industry of electric fan controllers. Derale Performance...
    Adjustable turn-on temperature from 150-240 Degree FRated at a maximum 35 amps per fan
    $139.99




An internal combustion engine provides optimum performance and fuel consumption when operating within a narrow temperature range between 195 and 220 degrees of Fahrenheit, whereas, some racing engines can run even hotter. If the temperature goes down, the engine will lose its efficiency and, vise versa, a higher temperature may cause damage to the motor. To keep this under control is the job of the engine cooling system, which relies on different sensors to continuously monitor the temperature of the engine, and uses different switches and relays to operate the cooling fan and indicate the driver if the motor runs out of its normal temperature range.

Whether it is a gasoline or diesel engine, it has at least one sensor that measures the temperature of the engine. This sensor is called an engine coolant temperature sensor and is usually cut into the engine block. It determines the coolant temperature and sends the data to the control module. The ECU analyzes them and based on the engine temperature adjusts ignition timing and fuel injection if necessary, as well as activates the radiator fan if the engine is getting too hot. The information received from the sensor is also used to operate the temperature gauge on the dashboard, allowing the driver to visually monitor the temperature of the engine.

When the engine gets too hot, the ECU starts the cooling fan. In order to avoid a short circuit and damage to the control unit, the fan is operated via a relay. Those vehicles that do not have an ECU use an engine cooling fan switch to start the fan. This switch is cut into the radiator and is activated when the temperature of the coolant that flows through the radiator reaches a specific threshold. As soon as the antifreeze cools down to a specific predetermined level, the engine cooling fan switch breaks the circuit. It does not rely on the engine coolant temperature sensor, so it will work even if the sensor fails.

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Switches, Sensors & Relays Reviews

1 review
I order from CARiD often to supply my work t with the equipment it needs. Always fast and easy, and always the right parts. I really love my new coolant temperature sensor: high accuracy, small cost and small size. Thank you CARiD!
Posted by Stephen (Gars Am Inn, AA) / February 09, 20182006 Chevy Corvette
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