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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

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 2000 +

35 amps MSD High-Current Solid State Relay Block 75643-HC

35 amps MSD High-Current Solid State Relay Block 75643-HC

35 amps MSD High-Current Solid State Relay Block 75643-HC

Relays, High-Current, Solid State, 4 Channel, 35 amps, Black Each

Part Number: MSD-75643-HC

4.43 out of 5 stars ( 7 )

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40 amps Spal Electric Fan Relay Wiring Kit FRH

40 amps Spal Electric Fan Relay Wiring Kit FRH

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 MSD Relay Module 7566-4

40 amps MSD Relay Module 7566-4

40 amps MSD Relay Module 7566-4

Relay Module, Four Channel, 40 Amp, 7-20V, Each

Part Number: MSD-7566-4

4.2 out of 5 stars ( 5 )

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40 amps MSD Relay Module 7566-2

40 amps MSD Relay Module 7566-2

40 amps MSD Relay Module 7566-2

Relay Module, Two Channel, 40 Amp, 7-20V, Each

Part Number: MSD-7566-2

5.0 out of 5 stars ( 5 )

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70 amps Dakota Digital Relay with Wiring Sockets RLY-3

70 amps Dakota Digital Relay with Wiring Sockets RLY-3

70 amps Dakota Digital Relay with Wiring Sockets RLY-3

Relay, 70 Amps, Single Pole, Each

Part Number: DAK-RLY3

4.97 out of 5 stars ( 33 )

Estimated Ship Date: Today

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30 amps Painless Performance Weatherproof Fuel Pump Relay Kit 30131

Made in the USA 30 amps Painless Performance Weatherproof Fuel Pump Relay Kit 30131

30 amps Painless Performance Weatherproof Fuel Pump Relay Kit 30131

Relay, Fuel Pump, Weatherproof, 30 Amp, Single Pole, Each

Part Number: PRF-30131

4.92 out of 5 stars ( 12 )

Estimated Ship Date: Today

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Hella Relays 007794301

Hella Relays 007794301

Hella Relays 007794301

Relay Mini 20/40 Amp SPDT w/ Bracket & Resistor

Part Number: HLA-007794301

4.85 out of 5 stars ( 13 )

Estimated Ship Date: Today

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35 amps Painless Performance Relay and Relay Kit 80129

35 amps Painless Performance Relay and Relay Kit 80129

35 amps Painless Performance Relay and Relay Kit 80129

Relay, Universal, 35 Amp, Single Pole, Waterproof, Sealed Base, Each

Part Number: PRF-80129

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Today

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20 amps MSD Solid State Relay 75643

20 amps MSD Solid State Relay 75643

20 amps MSD Solid State Relay 75643

Relay Block, Solid State, Stand Alone, Black, Each

Part Number: MSD-75643

3.36 out of 5 stars ( 11 )

Estimated Ship Date: Today

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

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

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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10 amps Hella Relay 996152151

10 amps Hella Relay 996152151

10 amps Hella Relay 996152151

Relay, Single Pole, 12 V, 10 amps, Spade Terminal Type, Each

Part Number: HLA-996152151

5.0 out of 5 stars ( 3 )

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20 amps Hella Relay 931774031

20 amps Hella Relay 931774031

20 amps Hella Relay 931774031

Relay, Multi Purpose, Single Pole, 20 Amp, 12 V, Sealed Cover, Form A, Solid State Switch, Mini Relay, ISO, Each

Part Number: HLA-931774031

4.67 out of 5 stars ( 6 )

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80 amps American Autowire Universal Relay Kit 510001

80 amps American Autowire Universal Relay Kit 510001

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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40 amps American Autowire Universal Relay Kit 500479

40 amps American Autowire Universal Relay Kit 500479

40 amps American Autowire Universal Relay Kit 500479

Relay, 12 V, 40 amps, Single Pole, Wire Leads Terminal Type, Wiring Harness, Fuse, Kit

Part Number: AWW-500479

4.81 out of 5 stars ( 21 )

Estimated Ship Date: Today

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ididit Ignition Relay Packs 3100038100

Made in the USA ididit Ignition Relay Packs 3100038100

ididit Ignition Relay Packs 3100038100

Ignition Relay Pack, for FAST or MAST EFI Systems, Ididit Column with Ignition, Each

Part Number: IDT-3100038100

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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30 amps Mr. Gasket Waterproof Relay 40100G

30 amps Mr. Gasket Waterproof Relay 40100G

30 amps Mr. Gasket Waterproof Relay 40100G

Waterproof Relay, 30 AMP Continuous, 40 AMP Momentary, 12V, Each

Part Number: MRG-40100G

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Today

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20 amps American Autowire Flasher Relay 510226

20 amps American Autowire Flasher Relay 510226

20 amps American Autowire Flasher Relay 510226

Turn Signal Flasher, LED, 2-Terminal, 12V, 20 Amp Rating, Each

Part Number: AWW-510226

4.61 out of 5 stars ( 51 )

Estimated Ship Date: Today

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30/40 amps Bosch Relay 332019150

30/40 amps Bosch Relay 332019150

30/40 amps Bosch Relay 332019150

Relay, 12 V, 30/40 amps, Single Pole, Spade Terminals, Each

Part Number: BCH-0332019150

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Today

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50 amps Painless Performance Relay and Relay Kit 30108

Made in the USA 50 amps Painless Performance Relay and Relay Kit 30108

50 amps Painless Performance Relay and Relay Kit 30108

Relay, 6-Bank, 50 Amp, Single Pole, Each

Part Number: PRF-30108

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Today

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25 amps Derale Electric Fan Relay 16763

25 amps Derale Electric Fan Relay 16763

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

Made in the USA 70 amps Painless Performance FAN-THOM Electric Fan Relay Kit 30100

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 )

Estimated Ship Date: Today

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50 amps Painless Performance Relay and Relay Kit 30107

Made in the USA 50 amps Painless Performance Relay and Relay Kit 30107

50 amps Painless Performance Relay and Relay Kit 30107

Relay, 3-Bank, 50 Amp, Single Pole, Each

Part Number: PRF-30107

4.5 out of 5 stars ( 12 )

Estimated Ship Date: Today

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40 amps Hella Relay 007794311

40 amps Hella Relay 007794311

40 amps Hella Relay 007794311

Relay, Weatherproof Relay with Bracket, 12 V, 40 amps, Single Pole, Spade Terminal Type, Each

Part Number: HLA-007794311

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Today

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20/40 amps Hella Relay H41410081

20/40 amps Hella Relay H41410081

20/40 amps Hella Relay H41410081

Relay, SPDT/Form C Mini 280, 12 V, 20/40 amps, Single Pole, Male Spade Terminal Type with Resistor, Each

Part Number: HLA-H41410081

4.0 out of 5 stars ( 1 )

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