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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.

Individual Parts

Results 1 - 22 of 22

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

Part Number: RFW-AR70

4.86 out of 5 stars ( 21 )

Estimated Ship Date: Today

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Relay, 70 Amps, Single Pole, Each

Part Number: DAK-RLY3

4.97 out of 5 stars ( 36 )

Estimated Ship Date: Today

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Relay, 12 V, 70 amps, Single Pole, Wire Leads Terminal Type, Wiring Harness, Kit

Part Number: AWW-500511

4.86 out of 5 stars ( 7 )

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Relay, 70 Amp, Single Pole, Universal, Each

Part Number: RFW-RL70

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Mar 19, 2026 if ordered today

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Estimated Ship Date: Mar 19, 2026 if ordered today

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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Relay, Universal, 70 Amp, Single Pole, SPST Heavy Duty, Relay Base, Each

Part Number: PRF-80138

5.0 out of 5 stars ( 1 )

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

Part Number: VTA-23102-VUW

4.0 out of 5 stars ( 1 )

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Relays, 12 V, 70 amps, 4 Blade Terminals, Fuel Pump Relay Position, Porsche, Each

Part Number: BCH-0986332002

Not Yet Reviewed

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Relay, Universal, 70 Amp, Single Pole, SPST Heavy Duty, Each

Part Number: PRF-80137

Not Yet Reviewed

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Relay, 12 V, 70 amps, Single Pole, Auxiliary Fan Usage, Each

Part Number: AWW-500532

4.8 out of 5 stars ( 5 )

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Relay, 70 Amp, 12 V, Audi, Cadillac, Dodge, Saab, VW, Each

Part Number: SMP-RY255

Not Yet Reviewed

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Relay, Anti-Theft, 12 V, 40 amps, Single Pole, Blade Terminal, Wiring Harness, Kit

Part Number: RFW-AT70

Not Yet Reviewed

Estimated Ship Date: Mar 19, 2026 if ordered today

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Estimated Ship Date: Mar 19, 2026 if ordered today

HORN RELAY

Part Number: GMK-4012-263-72

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Horn Relay, 12 V, Single Pole, Chevy, GMC, Pontiac, Each

Part Number: GMK-4044-263-65

5.0 out of 5 stars ( 2 )

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Relay, Stock, 12 V, Blade/Screw, 3 Male Terminals, Each

Part Number: SMP-HR117

5.0 out of 5 stars ( 2 )

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Relay, Stock, 12 V, Blade/Screw, 3 Male Terminals, Each

Part Number: SMP-HR106

Not Yet Reviewed

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Relay, Stock, 12 V, Blade/Screw, 3 Male Terminals, Each

Part Number: SMP-HR106T

Not Yet Reviewed

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Relay, 6 V, Blade/Screw, 3 Male Terminals, Each

Part Number: SMP-HR114

Not Yet Reviewed

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Multi-Function Relay

Part Number: SMP-RY-1744

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

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Estimated Ship Date: Feb 17, 2026 if ordered today

FLASHER UNIT 12V 21W5W2 (4)

Part Number: HLA-001887041

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

Multi Purpose Relay

Part Number: HLA-933332531

Not Yet Reviewed

Estimated Ship Date: Mar 24, 2026 if ordered today

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Estimated Ship Date: Mar 24, 2026 if ordered today

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