Automotive Relays

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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.

Showing All Items, Including Not in Stock Items That Match "RY-318"

Individual Parts

Part Groups

Results 1 - 25 of 46

Standard Motor Relays RY-318

Relay, Stock, 12 V, Each

Part Number: SMP-RY318

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

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 ( 4 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

30 amps Standard Motor Relay RY-115

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

Part Number: SMP-RY115

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

20 amps Standard Motor Relay RY-612

Relay, 12 V, 20 amps, Spade Terminal, Each

Part Number: SMP-RY612

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

40 amps Standard Motor Relay RY-242

Relay, 40 Amp, 12 V, Buick, Cadillac, Chevy, Chrysler, Dodge, Eagle, Geo, GMC, Hummer, Jeep, for Nissan, Oldsmobile, Pontiac, Porsche, Saab, Each

Part Number: SMP-RY242

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

30 amps Standard Motor Relay RY-119

Relay, 30 Amp, 12 V, Chrysler, Dodge, Plymouth, Each

Part Number: SMP-RY119

Not Yet Reviewed

Estimated Ship Date: Today

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Estimated Ship Date: Today

Standard Motor Relays RY-300

Relay, Stock, 12 V, Each

Part Number: SMP-RY300

1.0 out of 5 stars ( 1 )

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25 amps Standard Motor Relay RY-429

Relay, A/C Compressor Cut-Off, 25 Amp, 12 V, 5 Terminal, Male Blade, Chrysler, Dodge, Jeep, Mitsubishi, Plymouth, Ram, Each

Part Number: SMP-RY429

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

22 amps Standard Motor Relay RY-51

Relay, 22 Amp, 12 V, Acura®, Chevy, Chrysler, Daihatsu, Dodge, Eagle, Ford, Geo, for use on Honda®, Lexus, Mitsubishi, for Nissan, Plymouth, Each

Part Number: SMP-RY51

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

20 amps Standard Motor Relay RY-27

Relay, 20 Amp, 12 V, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: SMP-RY27

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Standard Motor Relays RY-441

Relay, Engine Air Intake Heater, 12 V, 8 Terminal, Male Blade, Dodge, Each

Part Number: SMP-RY441

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

20 amps Standard Motor Relay RY-108

Relay, 20 Amp, 12 V, Chrysler, Dodge, Plymouth, Each

Part Number: SMP-RY108

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

30 amps Standard Motor Relay RY-129

Relay, 30 Amp, 12 V, Stock, Each

Part Number: SMP-RY129

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

40 amps Standard Motor Relay RY-265

Relay, 40 Amp, 12 V, Stock, Each

Part Number: SMP-RY265

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

20 amps Standard Motor Relay RY-345

Relay, 20 Amp, 12 V, Dodge, Lexus, Pontiac, Scion, Toyota, Each

Part Number: SMP-RY345

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

30 amps Standard Motor Relay RY-270

Relay, 30 Amp, 12 V, Dodge, Each

Part Number: SMP-RY270

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

40 amps Standard Motor Relay RY-440

Relay, ABS, 40 amp, 12 V, 5 Terminal, Male Blade, Chrysler, Dodge, Jeep, Volkswagen, Each

Part Number: SMP-RY440

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

30 amps Standard Motor Relay RY-48

Relay, HVAC Delay, 30 amp, 12 V, 5 Terminal, Blade, American Motors, Cadillac, Chrysler, Dodge, Isuzu, Jeep, Mercury, Plymouth, Renault, Saab, Each

Part Number: SMP-RY48

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

30 amps Standard Motor Relay RY-124

Relay, 30 Amp, 12 V, Stock, Each

Part Number: SMP-RY124

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

30 amps Standard Motor Relay RY-614

Relay, Horn, 30 amp, 12 V, 4 Terminal, Male Blade, Chrysler, Dodge, Jeep, Plymouth, Each

Part Number: SMP-RY614

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Standard Motor Relays RY-74

Relay, A/C Compressor Clutch Cut-Off, 12 V, 4 Terminal, Male Blade, Chrysler, Dodge, Plymouth, Each

Part Number: SMP-RY74

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

20 amps Standard Motor Relay RY-306

Relay, 20 Amp, 12 V, Dodge, Ford, Mercury, Each

Part Number: SMP-RY306

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

25 amps Standard Motor Relay RY-189

Relay, 25 Amp, 12 V, Stock, Each

Part Number: SMP-RY189

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

Standard Motor Relays RY-21

Relay, Stock, 12 V, Each

Part Number: SMP-RY21

Not Yet Reviewed

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20 amps Standard Motor Relay RY-633

Relay, Multi Purpose, 20 amps, 12 V, 5 Terminal, Male Blade, Chrysler, Dodge, Plymouth, Each

Part Number: SMP-RY633

Not Yet Reviewed

Estimated Ship Date: Apr 27, 2026 if ordered today

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Estimated Ship Date: Apr 27, 2026 if ordered today

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