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Summit Racing SpeedCard - learn how to get 15% back up to $150

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Performance & Replacement Spark Plugs

Fire up your engine with power-packed strokes and increased combustion pressure by adding top-quality spark plugs to your racing or street machine. Whether your car...

Fire up your engine with power-packed strokes and increased combustion pressure by adding top-quality spark plugs to your racing or street machine. Whether your car is foreign or domestic, we have a massive assortment of performance and replacement spark plug options from which to choose. Select from the industry’s leading brands, including E3 Spark Plugs, NGK, Champion, Bosch, ACDelco, Fram, ACCEL, Autolite, Ford Racing, Motorcraft, and many more! With options for virtually any type of electrode core and tip material, we have the spark plugs to keep your pistons firing run after run!

Fire up your engine with power-packed strokes and increased combustion pressure by adding top-quality spark plugs to your racing or street machine. Whether your car is foreign or domestic, we have a massive assortment of performance and replacement spark plug options from which to choose. Select from the industry’s leading brands, including E3 Spark Plugs, NGK, Champion, Bosch, ACDelco, Fram, ACCEL, Autolite, Ford Racing, Motorcraft, and many more! With options for virtually any type of electrode core and tip material, we have the spark plugs to keep your pistons firing run after run!

Showing In Stock Items. Show All 22 Items.

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Results 1 - 11 of 11

Champion Copper Plus Spark Plugs J8C

Champion Copper Plus Spark Plugs J8C

Champion Copper Plus Spark Plugs J8C

Spark Plug, Copper Plus, 14mm Thread Size, 0.375 in. Reach, 8 Heat Range, Each

Part Number: CPN-841

4.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Autolite Copper Core Spark Plugs 386

Autolite Copper Core Spark Plugs 386

Autolite Copper Core Spark Plugs 386

Spark Plug, Copper Core, Gasket Seat, 18mm Thread, 0.500 in. Reach, Resistor, Each

Part Number: ATL-386

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Champion Copper Plus Spark Plugs RJ8C

Champion Copper Plus Spark Plugs RJ8C

Champion Copper Plus Spark Plugs RJ8C

Spark Plug, Copper Plus, Nickel Copper Alloy, 14mm Thread, 0.375 in. Reach, Flat Seat, 13/16 in. Wrench Size, Each

Part Number: CPN-871

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Denso Iridium Power Spark Plugs 5305

Denso Iridium Power Spark Plugs 5305

Denso Iridium Power Spark Plugs 5305

Spark Plugs, Iridium Power, Gasket Seat, 14mm Thread, 19mm Reach, Resistor, Each

Part Number: DNP-5305

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

ACDelco Spark Plugs 19385367

ACDelco Spark Plugs 19385367

ACDelco Spark Plugs 19385367

Spark Plug, AC Delco, Vintage, 10mm, 0.50 in. Reach, Non Projected Tip, Gasket Seat, 5/8 in. Wrench, Each

Part Number: ADO-M8

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Champion Industrial Spark Plugs 516

Champion Industrial Spark Plugs 516

Champion Industrial Spark Plugs 516

Spark Plug, D16, Industrial and Agricultural, 18mm Thread, .500 in. Reach, Non-Resistor, Each

Part Number: CPN-516

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Champion Copper Plus Spark Plugs 592

Champion Copper Plus Spark Plugs 592

Champion Copper Plus Spark Plugs 592

Spark Plug, Copper Plus, 14mm, Gasket Seat, .375 in. Reach, Projected Tip, Resistor, RJ12C, Each

Part Number: CPN-592

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Denso Platinum TT Spark Plugs 4501

Denso Platinum TT Spark Plugs 4501

Denso Platinum TT Spark Plugs 4501

Spark Plugs, Platinum TT, Gasket Seat, 14mm Thread, 19mm Reach, Resistor, Each

Part Number: DNP-4501

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Champion Copper Plus Spark Plugs 123

Champion Copper Plus Spark Plugs 123

Champion Copper Plus Spark Plugs 123

Spark Plug, RN5C, Copper Plus, 14mm Thread, .750 in. Reach, Gasket seat, Resistor, Projected Tip, Each

Part Number: CPN-123

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Champion Truck Plug Spark Plugs 842

Champion Truck Plug Spark Plugs 842

Champion Truck Plug Spark Plugs 842

Spark Plug, Truck, Gasket Seat, 10mm Thread, .250 in. Reach, Projected Tip, Each

Part Number: CPN-842

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

Champion Copper Plus Spark Plugs 592C

Champion Copper Plus Spark Plugs 592C

Champion Copper Plus Spark Plugs 592C

USE AUP 308

Part Number: CPN-592C

Not Yet Reviewed

Estimated Ship Date: Monday 1/19/2026

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Estimated Ship Date: Monday 1/19/2026

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