Summit Racing SpeedCard - learn how to get 10% back up to $100

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Thermal Radiator Cooling Fan Switches & Controllers

Take control of your electric fan with one of our adjustable or non-adjustable fan switches. Our line of radiator fan switches includes a variety of universal switches...

Take control of your electric fan with one of our adjustable or non-adjustable fan switches. Our line of radiator fan switches includes a variety of universal switches and custom switches for hundreds of vehicle applications. The switches are designed and manufactured by the most-trusted names in automotive cooling—names like Derale, Be Cool, Flex-a-lite, Perma-Cool, and many others. We even have complete fan switch kits from wiring experts like Painless Performance and Ron Francis Wiring. Shop Summit Racing for your thermal fan switch solution today!

Take control of your electric fan with one of our adjustable or non-adjustable fan switches. Our line of radiator fan switches includes a variety of universal switches and custom switches for hundreds of vehicle applications. The switches are designed and manufactured by the most-trusted names in automotive cooling—names like Derale, Be Cool, Flex-a-lite, Perma-Cool, and many others. We even have complete fan switch kits from wiring experts like Painless Performance and Ron Francis Wiring. Shop Summit Racing for your thermal fan switch solution today!

Individual Parts

Results 1 - 25 of 114

Fan Control, Thermostatic, Adjustable, 160 to 240 Degrees, Kit

Part Number: SUM-890124

2.33 out of 5 stars ( 6 )

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Fan Switch, Thermostatic, Radiator Probe, Adjustable 160-210 Degrees F, Kit

Part Number: HDA-3647

4.23 out of 5 stars ( 118 )

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Electric Fan Controller, Adjustable, Radiator Probe Sending Unit, 160 - 240 degrees F, Wiring Harness, Kit

Part Number: FLX-106999

4.0 out of 5 stars ( 2 )

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Electric Fan Controller, Single/Dual, Radiator Probe, Adjustable, 32-240 Degrees F Range, Kit

Part Number: MAR-MFA100

4.14 out of 5 stars ( 7 )

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Fan Switch, Thermostatic, Thread-In, Adjustable 160-210 Degrees F, Kit

Part Number: HDA-3651

3.03 out of 5 stars ( 31 )

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Electric Fan Controller, Thread-In, 200 Degrees On, 185 Degrees Off, 3/8 in.-18 NPT, Kit

Part Number: MAR-MFA103

5.0 out of 5 stars ( 1 )

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Fan Switch, Thermostatic, Radiator Probe, 185 Degrees F On, 170 Degrees F Off, Kit

Part Number: HDA-3652

4.03 out of 5 stars ( 32 )

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Electric Fan Controller, Adjustable, Sending Unit, 150-240 degree F Range, Relay, Wiring Harness, Kit

Part Number: PRO-69599

4.43 out of 5 stars ( 23 )

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Fan Switch, Electric Fan Controller Kit, 110-190 degrees F Adjustment Range, Only Compatible with Brushed Fans, Kit

Part Number: MIO-MMFANPWMUBK

1.0 out of 5 stars ( 1 )

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Fan Control, Thermostatic, Adjustable, 160 to 240 Degrees, Kit

Part Number: FLX-107006

4.33 out of 5 stars ( 3 )

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Fan Control, Thermostatic, Adjustable, 160 to 240 Degrees, Kit

Part Number: FLX-106908

4.6 out of 5 stars ( 5 )

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Thermal Fan Switches, Replacement, PWM Fan Controllers, Each

Part Number: DER-16757

4.22 out of 5 stars ( 9 )

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Adjustable Electric Fan Controller, Black Relay, 150-240 Degrees F, 3/8 NPT Thermostat, Kit

Part Number: TSN-HC7110BK

Not Yet Reviewed

Estimated Ship Date: Nov 17, 2025 if ordered today

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Estimated Ship Date: Nov 17, 2025 if ordered today

Electric Fan Controller, Adjustable, Sending Unit, 150-240 degree F Range, Relay, Wiring Harness, Kit

Part Number: PRO-69598

3.79 out of 5 stars ( 14 )

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Fan Switch, Electric Fan Controller, Adjustable, 150-240 degrees F, Probe-Type Sending Unit, Kit

Part Number: MIO-FNCNTLUPROBE

4.63 out of 5 stars ( 19 )

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Electric Fan Controller, Adjustable, Thread-in Sending Unit, 160 - 240 degrees F, Relay, Wiring Harness, Kit

Part Number: FLX-107185

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Fan Switches, Brushless Electric Fan Controllers, Adjustable, Single Fan, Each

Part Number: PRO-67039

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Electric Fan Controller, Thread-In, 185 Degrees On, 170 Degrees Off, 3/8 in.-18 NPT, Kit

Part Number: MAR-MFA102

5.0 out of 5 stars ( 2 )

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Fan Switch, Thermostatic, Radiator Probe, 210 Degrees F to 160 Degrees Adjustment Range, Kit

Part Number: HDA-3654

2.91 out of 5 stars ( 11 )

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Fan Switch, Electric Fan Controller, Adjustable, 150-240 degrees F, 1/8 in. NPT Sending Unit, Kit

Part Number: MIO-FNCNTLU18NPT

4.33 out of 5 stars ( 9 )

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Adjustable Electric Fan Controller, Red Relay, 150-240 Degrees F, 3/8 NPT Thermostat, Kit

Part Number: TSN-HC7110R

Not Yet Reviewed

Estimated Ship Date: Nov 17, 2025 if ordered today

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Sensor, for Derale Adjustable Fan Controller, Each

Part Number: DER-16753

3.0 out of 5 stars ( 2 )

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Electric Fan Control, High Amperage, 70 Amp Relay, Adjustable, 150-250 Degrees F, Bluetooth Controller, Kit

Part Number: DAK-PAC2800BT

4.77 out of 5 stars ( 43 )

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Electric Fan Control, Dual, High Amperage, Adjustable, 150-240 Degrees F, Kit

Part Number: DER-16788

2.68 out of 5 stars ( 41 )

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