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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.
Relay, 20 Amp, 12 V, Stock, Each
Part Number: SMP-RY38
Not Yet Reviewed
Relay, Engine Control Module, 10 amp, 12 V, 5 Terminal, Male Blade, Ford, for Kia, Mazda, Mercury, Each
Part Number: SMP-RY389
Not Yet Reviewed
Estimated Ship Date: Apr 21, 2026 if ordered today
Estimated Ship Date: Apr 21, 2026 if ordered today
Relay, Diesel Glow Plug, 12 V, 3 Terminal, Male Blade, Chevy, GMC, Each
Part Number: SMP-RY383
Not Yet Reviewed
Estimated Ship Date: Apr 21, 2026 if ordered today
Estimated Ship Date: Apr 21, 2026 if ordered today
Relay, Battery Charge, 12 V, 4 Terminal, Male Blade, Dodge, Eagle, Mitsubishi, Plymouth, Each
Part Number: SMP-RY385
Not Yet Reviewed
Estimated Ship Date: Apr 20, 2026 if ordered today
Estimated Ship Date: Apr 20, 2026 if ordered today
Relay, ABS, 20 amp, 12 V, 4 Terminal, Male Blade, Dodge, Eagle, Mitsubishi, Plymouth, Each
Part Number: SMP-RY384
Not Yet Reviewed
Estimated Ship Date: Apr 21, 2026 if ordered today
Estimated Ship Date: Apr 21, 2026 if ordered today
Relay, Temperature Control, 5 amp, 12 V, 4 Terminal, Male Blade, for Nissan, Each
Part Number: SMP-RY387
Not Yet Reviewed
