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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 97

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 )

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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, Relay Kit, Non-Adjustable, 185 to 195 Degree F, Universal, Kit

Part Number: PRF-30114

5.0 out of 5 stars ( 3 )

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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, Relay Kit, Waterproof, Non-Adjustable, M12 x 1.5, Chevy, GMC/Pontiac, Kit

Part Number: PRF-30127

3.67 out of 5 stars ( 3 )

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Electric Fan Control/Relay Kit, Dual Fans, 195 Degrees on, 185 Degrees Off., Kit

Part Number: PRF-30116

4.64 out of 5 stars ( 22 )

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Wiring System, Dual Electric Fans, 176 Degrees On, 161 Degrees Off, Kit

Part Number: RFW-AR77

4.78 out of 5 stars ( 9 )

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Fan Control, Relay Kit, Waterproof, Non-Adjustable, 195 Degrees On/185 Degrees Off, Kit

Part Number: PRF-30128

5.0 out of 5 stars ( 3 )

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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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Fan Control, Relay Kit, Weatherproof, Non-Adjustable, M12 x 1.5, Chevy, GMC/Pontiac, Kit

Part Number: PRF-30106

5.0 out of 5 stars ( 1 )

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Fan Control, Thermostatic, 195 Degrees On/185 Degrees Off, Kit

Part Number: PRF-30102

4.45 out of 5 stars ( 29 )

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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 )

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Fan Switches, Dual Electric Fan Relay System, Sending Unit, 185 degrees F Fan Off Temperature, 200 degrees F Fan On Temperature, Wiring Harness, Kit

Part Number: RFW-AR78

5.0 out of 5 stars ( 10 )

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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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Fan Switch, Electric Relay, Sending Unit, Wiring Harness, Kit

Part Number: FBR-FB403

4.75 out of 5 stars ( 4 )

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Fan Switches, Electric Fan Harness and Relay Kits, Sending Unit, 195 degrees F Fan On Temperature, Kit

Part Number: MSD-89616

5.0 out of 5 stars ( 1 )

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Relay Controller, Temperature-Based, Adjustable Fan Thermal Switch Style, 0-1,9990 Degrees F, Harness, Each

Part Number: LPE-L460220000

Not Yet Reviewed

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PRO SERIES ELECTRIC FAN RELAY WIRING HARNESS KIT, 165-185 DEGREE F SWITCHED, RELAY 40-50 AMP

Part Number: TSN-HC7108

Not Yet Reviewed

Estimated Ship Date: Apr 6, 2026 if ordered today

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Estimated Ship Date: Apr 6, 2026 if ordered today

Fan Switches, Thermal, Electric Fan Wiring Kit, Singe/Dual Fans, Relay Included, Kit

Part Number: CIM-2SFC

4.0 out of 5 stars ( 2 )

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Fan Relay (On 200/Off 185)

Part Number: RFW-AR30

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

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Estimated Ship Date: Mar 19, 2026 if ordered today

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

Part Number: DAK-PAC2800BT

4.8 out of 5 stars ( 51 )

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Fan Switches, Thermal, Electric Fan Wiring Kit, Singe/Dual Fans, 190 Degrees F Turn-On, Non-Adjustable, Relay Included, Kit

Part Number: RAD-EF-1

4.59 out of 5 stars ( 34 )

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

Part Number: SUM-890115

4.46 out of 5 stars ( 70 )

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Fan Control, Single, 40 Amp Relay, Thermostatic, 195 Deg. On/175 Deg. Off, Sending Unit, Kit

Part Number: SPU-IX-195FH

4.9 out of 5 stars ( 20 )

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