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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.
Showing In Stock Items. Show All 32 Items.
Relays, Universal Board, Each
Part Number: ARC-8000U
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
Dual 80AMP Relay Controller
Part Number: ARC-RC80
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
SWITCH PANEL RELAY KIT
Part Number: ARC-8000RECU
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
3 Solid State & 1 Mechanical Relay
Part Number: ARC-4000U-SS3
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
1 Solid State & 3 Mechanical Relays
Part Number: ARC-4000U-SS1
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
Relay, High Current, 40 Amp, Single Pole, Each
Part Number: ARC-1440
Estimated Ship Date: Today
Estimated Ship Date: Today
Relay, Module, 40 Amp, 6 Gauge Power Cable, Each
Part Number: ARC-RC4
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Relays, ARC Relay Modules, 40 Amp, 12/16 Volts, 8 Relay Terminals, Each
Part Number: ARC-RC8-ECU-1
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
4 Solid State Relays
Part Number: ARC-4000U-SS4
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
2 Solid State & 2 Mechanical Relays
Part Number: ARC-4000U-SS2
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
Relay, Module, 40 Amp, 6 Gauge Power Cable, Each
Part Number: ARC-RC8
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Relay Module, 12 V, 40 Amp, Single Pole, 6 Gauge Power Cable, Each
Part Number: ARC-RC4-ECU
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
4 Mechanical Relays
Part Number: ARC-4000U
Not Yet Reviewed
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
12 POSITION RELAY CENTER
Part Number: ARC-RC12
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Relays, Headlight Enhancement Relay with G for Aaw, 12 V, 40 amps, Kit
Part Number: AWW-500403
Estimated Ship Date: Today
Estimated Ship Date: Today
Relay System, Electric Fan, 70 Amps, Ignition Switch Activated, Kit
Part Number: RFW-AR70
Estimated Ship Date: Today
Estimated Ship Date: Today
Flasher Unit, 6V Turn Signal Flasher, 3 Terminals, 6 V, Each
Part Number: UPD-110252
Estimated Ship Date: Today
Estimated Ship Date: Today
Relay, Horn Usage, 12 V, Single Pole, Chevy, Pontiac, Each
Part Number: AWW-500909
Estimated Ship Date: Today
Estimated Ship Date: Today
Air Conditioning Relay, 40 Amp, Each
Part Number: RFW-AR15
Estimated Ship Date: May 19, 2026 if ordered today
Estimated Ship Date: May 19, 2026 if ordered today
Relay, Power Window, Reversing, 2-Window, 12 V, 40 amps, Each
Part Number: AWW-510961
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Relay, Waterproof, 12 V, 40 amps, Single Pole Double Throw, 5 Terminal, Male Pin, Kit
Part Number: AWW-500448
Estimated Ship Date: Today
Estimated Ship Date: Today
Relays, Headlight Enhancement Relay with G for Aaw, 12 V, 40 amps, Waterproof, Kit
Part Number: AWW-500431
Estimated Ship Date: Today
Estimated Ship Date: Today
Relay, 12 V, 70 amps, Single Pole, Auxiliary Fan Usage, Each
Part Number: AWW-500532
Estimated Ship Date: Today
Estimated Ship Date: Today
Relay, Micro 280 Series, 12 V, 20 amps, Single Pole, Horn, Turn Signal, for American Autowire Panels, Each
Part Number: AWW-500222
Not Yet Reviewed
Estimated Ship Date: Jun 18, 2026 if ordered today
Estimated Ship Date: Jun 18, 2026 if ordered today
