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Thermostat Fan Switch, 190'F On - 175'F Off, Automotive Engine Electric Radiator Cooling Fan Temperature Switches Sensor 1/8' NPT

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$15.09

$ 6 .99 $6.99

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About this item

  • [Thread Size]: 1/8" NPT. Fan Switch Temperature Fahrenheit: 190'F On - 175'F Off
  • [Fan Thermostat Temperature Switch]: Closes electrical circuit at turn-on temperature and grounds fan
  • [Package included] 1x Thermostat Switch
  • [Application Range] The switch features a universal size design, making it suitable for installation on various components such as radiators, oil coolers, condensers, and water hoses. This versatile adaptability makes it an ideal choice for a range of vehicle cooling systems
  • [Ease of Installation] Designed with NPT size for threaded connections, this switch is easy to install and integrates seamlessly with different devices. Its universal sizing allows for straightforward installation into existing cooling systems without the need for extensive modifications


The floor thermostat switch, also known as a thermal switch, plays a pivotal role in the electric radiator cooling fan system related to engine cooling. Here’s an overview of its functionality and purpose:

Temperature Monitoring: The floor thermostat switch, positioned on the radiator or engine block, is essentially a temperature-responsive device. Its primary function is to keep track of the coolant’s temperature.

Initiating the Cooling Process: Once the engine temperature attains a specific limit, typically ranging from 175-190 degrees, the floor thermostat switch completes the electrical circuit. This action triggers the activation of the electric radiator cooling fan.

Maintaining Engine Temperature: During periods when the vehicle is stationary or moving at reduced speeds, the electric radiator cooling fan aids in preserving the ideal engine temperature. It accomplishes this by drawing air through the radiator, which facilitates the cooling of the heated coolant circulating within.

Secure Mounting Mechanism: The term ‘threaded’ describes the mounting method of the switch. This implies that the switch body features threads, enabling it to be securely screwed into corresponding threaded holes on the radiator or engine block. This design ensures a stable and leak-proof connection.

In essence, the floor thermostat switch is a temperature-responsive component that initiates the operation of the electric radiator cooling fan, thereby assisting in regulating engine temperature.

Packaging includes:

1 x Thermostat Fan Switch 190'F On - 175'F Off

Please see the product details page below for specific models