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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 22 Items.

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Results 1 - 9 of 9

30 amps Painless Performance Brake Light Relay Kit 30105

Made in the USA

30 amps Painless Performance Brake Light Relay Kit 30105

30 amps Painless Performance Brake Light Relay Kit 30105

Relay, Brake Light, 30 Amp, Single Pole, Each

Part Number: PRF-30105

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

40 amps Ron Francis Wiring Brake Switch Relief Relay BR66

40 amps Ron Francis Wiring Brake Switch Relief Relay BR66

40 amps Ron Francis Wiring Brake Switch Relief Relay BR66

Relay, Brake Switch Relief, 12 V, 40 amps, Five Spade Terminals, Use with Halogen Brake Bulbs, Kit

Part Number: RFW-BR66

Not Yet Reviewed

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

40 amps Ron Francis Wiring Brake Switch and Cruise Control Relay BR15

40 amps Ron Francis Wiring Brake Switch and Cruise Control Relay BR15

40 amps Ron Francis Wiring Brake Switch and Cruise Control Relay BR15

Relay, 12 V, 40 amps, Spade Terminal Type, Wiring Harness, Kit

Part Number: RFW-BR15

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 8, 2026 if ordered today

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Estimated Ship Date: Jan 8, 2026 if ordered today

URO Parts Relays 8533176

URO Parts Relays 8533176

URO Parts Relays 8533176

Relay, Multi-Purpose, 12V, 5 Blade Terminals, OE-Style with Modern Electronics, Saab, Each

Part Number: URO-008584

Not Yet Reviewed

Estimated Ship Date: Dec 29, 2025 if ordered today

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Estimated Ship Date: Dec 29, 2025 if ordered today

ACDelco Replacement Relays 13500114

ACDelco Replacement Relays 13500114

ACDelco Replacement Relays 13500114

Relay, Multi Purpose, High Power, General, 8386, Each

Part Number: ADO-13500114

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

30 amps Standard Motor Relay RY-116

30 amps Standard Motor Relay RY-116

30 amps Standard Motor Relay RY-116

Relay, 30 Amp, 12V, 5 Male Terminals, Each

Part Number: SMP-RY116

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

30 amps Standard Motor T-Series Relay RY116T

30 amps Standard Motor T-Series Relay RY116T

30 amps Standard Motor T-Series Relay RY116T

Relay, 30 Amp, 12 V, American Motors, Audi, BMW, Buick, Cadillac, Chevy, Chrysler, Daewoo, Dodge, Eagle, Fiat, Ford Geo, GMC, for use on Honda®, Each

Part Number: SMP-RY116T

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Chevrolet Performance Relays 19118886

Chevrolet Performance Relays 19118886

Chevrolet Performance Relays 19118886

RELAY ASM, MULTIUSE

Part Number: NAL-19118886

Not Yet Reviewed

Estimated Ship Date: Mar 25, 2026 if ordered today

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Estimated Ship Date: Mar 25, 2026 if ordered today

35 amps ACDelco Replacement Relay 13503103

35 amps ACDelco Replacement Relay 13503103

35 amps ACDelco Replacement Relay 13503103

Relay, Replacement, 12 V, 35 amps, 5 Male Spade Terminals, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Each

Part Number: ADO-15-81106

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

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