Summit Racing SpeedCard - learn how to get 15% back up to $150

Summit Racing SpeedCard - learn how to get 15% back up to $150

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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 96

Electric Fan Control/Relay Kit, Dual Fans, 185 Degrees on, 175 Degrees Off., Kit

Part Number: PRF-30117

4.62 out of 5 stars ( 60 )

Estimated Ship Date: Today

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Fan Control, Thermostatic, 185 Degrees On/175 Degrees Off, Sending Unit, 3/8 in. NPT, Each

Part Number: SUM-890117

4.18 out of 5 stars ( 65 )

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Fan Control, Thermostatic, 185 Degrees On/165 Degrees Off, Sending Unit, Each

Part Number: BCI-75029

4.54 out of 5 stars ( 72 )

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Electric Fan Thermostat, In-Line, 180 Degrees On, 165 Degrees Off, -8 AN Inlet, Outlet, Kit

Part Number: DER-35021

4.8 out of 5 stars ( 5 )

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Fan Control, Thermostatic, 185 F Degrees On/175 F Degrees Off, 30 Amp, Kit

Part Number: SUM-890115

4.46 out of 5 stars ( 70 )

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Fan Control, Thermostatic, 185 Degrees On/175 Degrees Off, Kit

Part Number: PRF-30103

4.64 out of 5 stars ( 45 )

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Fan Control, Single, 40 Amp Relay, Thermostatic, 185 Deg. On/165 Deg. Off, Sending Unit, Kit

Part Number: SPU-IX-185FH

4.83 out of 5 stars ( 59 )

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Fan Control, Thermostatic, 180F Degrees On/165F Degrees Off, Kit

Part Number: DER-13021

3.29 out of 5 stars ( 31 )

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Electric Fan Control, On 180 Degrees, Off 165 Degrees, Kit

Part Number: DER-16730

2.33 out of 5 stars ( 27 )

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Electric Fan Thermostat, In-Line, 180 Degrees On, 165 Degrees Off, -6 AN Inlet, Outlet, Kit

Part Number: DER-35020

4.3 out of 5 stars ( 27 )

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Fan Control, Relay Kit, Waterproof, Non-Adjustable, 185 Degrees On/170 Degrees Off, Kit

Part Number: PRF-30129

4.57 out of 5 stars ( 7 )

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LSx Dual Fan Relay Kits, 0.70 Amp Fuse, 40 Amp Relays, Temperature Range 205 On/190 Off, Kit

Part Number: PRF-30118

4.5 out of 5 stars ( 6 )

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Fan Control, Thermostatic, 195 Degrees On/175 Degrees Off, Kit

Part Number: BCI-75021

4.33 out of 5 stars ( 15 )

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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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Wiring System, Electric Fan, 176 Degrees On, 161 Degrees Off, 3/8 in. NPT Thread, Each

Part Number: RFW-AR33

3.33 out of 5 stars ( 6 )

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Fan Control, Thermostatic, 185 Degrees On/170 Degrees Off, Each

Part Number: PRF-30111

3.97 out of 5 stars ( 37 )

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Fan Control, Thermostatic, 195 Degrees On/175 Degrees Off, Sending Unit, Each

Part Number: BCI-75030

3.9 out of 5 stars ( 29 )

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Fan Thermostat Switch, Thread-in, 190 Degrees On, 180 Degrees Off, Kit

Part Number: VTA-24190-VUT

4.8 out of 5 stars ( 5 )

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Thermostat Kit, Electric Fan, Non-adjustable, 176 Degrees On, 161 Degrees Off, 3/8 in.-18 NPT, Kit

Part Number: RFW-AR23

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Electric Fan Relay System, 70 Amp, Single Fan, 176 Degree On, 161 Degree Off, Kit

Part Number: RFW-AR73

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Thermostat Kit, Electric Fan, Non-adjustable, 200 Degrees On, 185 Degrees Off, 3/8 in.-18 NPT, Each

Part Number: RFW-AR24

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Mar 2, 2026 if ordered today

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Estimated Ship Date: Mar 2, 2026 if ordered today

Fan Control, Thermostatic, Thread-in, 190 Degrees On/175 Degrees Off, Kit

Part Number: DER-16731

3.65 out of 5 stars ( 31 )

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Fan Switch, Thread-in Sensor, On at 185/Off at 170, 30 Amp Relay, Kit

Part Number: MRG-40102G

4.67 out of 5 stars ( 3 )

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Fan Control, Thermostatic, 185 Degrees On/175 Degrees Off, 1/2 - 20 in. Thread, Kit

Part Number: PRF-30115

4.6 out of 5 stars ( 10 )

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