Automotive Relays

Generally speaking, a relay is an electronically operated switch that allows you to control a circuit with a low-power signal. Almost every system on your vehicle incorporates...

Generally speaking, a relay is an electronically operated switch that allows you to control a circuit with a low-power signal. Almost every system on your vehicle incorporates a relay in its controls, including the starter, electric cooling fans, fuel pump, headlights, and air conditioner, plus accessories like nitrous, off-road lights, and winches.

Whether you’re assembling an all-new wiring harness, or making repairs to existing circuits, the extensive selection, powerful search tools, and tech expertise at Summit Racing Equipment will help you find the right size and amperage rating of relay for the job.

Top Brands

Don’t take chances with a knock-off relay! Summit carries general purpose and application-specific relays from well-regarded brands like Painless Performance, MSD, Auto Rod Controls, Bosch, ACDelco, Standard Motor Products, Hella, and more.

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Results 1 - 25 of 124

40 amps Spal Electric Fan Relay Wiring Kit FRH

Fan Harness with Relay, 40 amp, 12 V, Single Pole, Each

Part Number: SPU-IX-FRH

4.69 out of 5 stars ( 36 )

Estimated Ship Date: Today

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40 amps Summit Racing Equipment® Electric Fan Relay SUM-890008

Relay, Fan, 40 Amp, Single Pole, 48 in. Wire, Each

Part Number: SUM-890008

4.33 out of 5 stars ( 24 )

Estimated Ship Date: Today

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25 amps Derale Electric Fan Relay 16765

Fan Relay, 40/60 Amp, 25 Amp Continuous, Each

Part Number: DER-16765

3.85 out of 5 stars ( 39 )

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70 amps Ron Francis Wiring 70 Amp Single Electric Fan Relay Systems AR70

Relay System, Electric Fan, 70 Amps, Ignition Switch Activated, Kit

Part Number: RFW-AR70

4.85 out of 5 stars ( 20 )

Estimated Ship Date: Today

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40 amps Painless Performance FAN-THOM Electric Fan Relay Kit 30101

40 amps Painless Performance FAN-THOM Electric Fan Relay Kit 30101

Relay, Fan, 40 Amp, Single Pole, Each

Part Number: PRF-30101

4.69 out of 5 stars ( 49 )

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30 amps Painless Performance Weatherproof Electric Fan Relay Kit 30130

Relay, Fan, 30 Amp, Single Pole, Waterproof, Each

Part Number: PRF-30130

4.82 out of 5 stars ( 17 )

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25 amps Derale Electric Fan Relay 16763

Relay, 40/60 Amp, 25 Amp Continuous, 30 Amp Fuse, Each

Part Number: DER-16763

4.16 out of 5 stars ( 25 )

Estimated Ship Date: Today

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70 amps Painless Performance FAN-THOM Electric Fan Relay Kit 30100

Fan Relay; Universal 70 Amp Fan Relay KIt

Part Number: PRF-30100

4.0 out of 5 stars ( 4 )

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40/60 amps Derale Electric Fan Relay 16764

Relay, Electric Fan Usage, 12 V, 40/60 amps, 25 amps Continuous Draw, Each

Part Number: DER-16764

4.57 out of 5 stars ( 14 )

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40 amps Painless Performance FAN-THOM Electric Fan Relay Kit 30109

Fan Relay Kit; PCM Controlled

Part Number: PRF-30109

4.2 out of 5 stars ( 10 )

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25 amps Summit Racing Equipment® Electric Fan Relay SUM-890119

Fan Relay, 40/60 Amp, 25 Amp Continuous, Each

Part Number: SUM-890119

4.0 out of 5 stars ( 2 )

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35 amps Painless Performance FAN-THOM II Electric Fan Relay Kit 30133

Fan Relay, Fan-Thom II, 12 V, 35 amps, Single Pole, Wiring Harness, Kit

Part Number: PRF-30133

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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40 amps Be Cool Electric Fan Relay 75022

Fan Relay, 40 Amps, Single Pole, Each

Part Number: BCI-75022

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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40 amps Zirgo Electric Fan Relay Kit ZIRZFRA

Relay, Electric Fan Usage, 12 V, 40 amps, Each

Part Number: ZIR-315362

Not Yet Reviewed

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Zirgo Relays ZIRZFRAS

Body Wiring Harness Relay, Electric Fan Relay Kit with Plug n Play Harness

Part Number: ZIR-10469

Not Yet Reviewed

Estimated Ship Date: Oct 29, 2025 if ordered today

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Estimated Ship Date: Oct 29, 2025 if ordered today

40 amps Be Cool Fan Relay Harness Kit 75017

Relay, Fan, 40 Amp, Single Pole, Each

Part Number: BCI-75017

4.8 out of 5 stars ( 10 )

Estimated Ship Date: Today

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30 amps Vintage Air A/C Cooling Fan Relay 44500-VUJ

Relay, 30 Amp, Single Pole, 12 V, Each

Part Number: VTA-44500-VUJ

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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70 amps Vintage Air Electric Fan Wiring Kit 23102-VUW

Relay, Cooling Fan Use, 70 Amp, Single Pole, Each

Part Number: VTA-23102-VUW

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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30 amps Vintage Air Electric Fan Wiring Kit 23101-VUW

Relay, Cooling Fan Use, 30 Amp, Single Pole, Each

Part Number: VTA-23101-VUW

3.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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20 amps Dorman Radiator Fan Control Module 921-301

Relay, Radiator Fan Control Relay, Direct Replacement, Ram, Each

Part Number: RNB-921-301

Not Yet Reviewed

Estimated Ship Date: Nov 5, 2025 if ordered today

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Estimated Ship Date: Nov 5, 2025 if ordered today

80 amps American Autowire Universal Relay Kit 510001

Fan Relay Kit, 80 Amps, 12V, Temp Sender, Two 40 Amp Relays, On at 210 degrees, Off 195 degrees, Harness, Kit

Part Number: AWW-510001

4.7 out of 5 stars ( 10 )

Estimated Ship Date: Today

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70 amps American Autowire Universal Relay Kit 510002

Fan Relay Kit, 70 Amps, 12V, Temperature Sender, Single Relay, Fuse, Wire Harness, Kit

Part Number: AWW-510002

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

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30 amps Ron Francis Wiring Air Conditioning Request Relay AR35

Relay System, Electric Fan, 30 Amps, Each

Part Number: RFW-AR35

2.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Crown Automotive Relays 4504215

Relay, Mini SPST, Electric Fan Usage, 12 V, Chrysler, Jeep, Each

Part Number: CWA-4504215

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

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Estimated Ship Date: Jan 6, 2026 if ordered today

Crown Automotive Relays 4707286AI

Relay, Electric Fan Usage, 12 V, Chrysler, Dodge, Jeep, Plymouth, Each

Part Number: CWA-4707286AI

Not Yet Reviewed

Estimated Ship Date: Jan 6, 2026 if ordered today

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Estimated Ship Date: Jan 6, 2026 if ordered today

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