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.

Individual Parts

Part Groups

Results 1 - 20 of 20

ARC Universal Relay Boards 8000U

Relays, Universal Board, Each

Part Number: ARC-8000U

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

40 amps ARC Relay Module RC4

Relay, Module, 40 Amp, 6 Gauge Power Cable, Each

Part Number: ARC-RC4

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

40 amps ARC Relay Module RC8-ECU-1

8 Position Relay Module with Ground Activated Relays

Part Number: ARC-RC8-ECU-1

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

40 amps ARC Relay Module RC8

Relay, Module, 40 Amp, 6 Gauge Power Cable, Each

Part Number: ARC-RC8

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

40 amps ARC High Current Relay Module 1440

Relay, High Current, 40 Amp, Single Pole, Each

Part Number: ARC-1440

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

40 amps ARC Relay Module 1401-4

Relay, Purge and Solenoid, 4-Position, Each

Part Number: ARC-1401-4

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

40 amps ARC Relay Module 1401-5

Relay Modules, 12 V, 40 amps, Single Pole, Spade Terminal Type, Set of 5

Part Number: ARC-1401-5

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

40 amps ARC Time Delay Relay 1402

Relay, Time Delay, 40 Amp, Single Pole, Each

Part Number: ARC-1402

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

ARC-Auto Rod Controls Relays RC-80

Dual 80AMP Relay Controller

Part Number: ARC-RC80

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

ARC-Auto Rod Controls Relays 4000U

4 Mechanical Relays

Part Number: ARC-4000U

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

ARC-Auto Rod Controls Relays 4000U-SS1

1 Solid State & 3 Mechanical Relays

Part Number: ARC-4000U-SS1

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

ARC-Auto Rod Controls Relays 4000U-SS3

3 Solid State & 1 Mechanical Relay

Part Number: ARC-4000U-SS3

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

ARC-Auto Rod Controls Relays RC12

12 POSITION RELAY CENTER

Part Number: ARC-RC12

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

ARC-Auto Rod Controls Relays 8000R-ECU

SWITCH PANEL RELAY KIT

Part Number: ARC-8000RECU

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

4 Solid State Relays

Part Number: ARC-4000U-SS4

Not Yet Reviewed

Estimated Ship Date: Jan 5, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 5, 2026 if ordered today

Page 1 of 1