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!

Individual Parts

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Results 1 - 25 of 2000 +

NGK Iridium IX Spark Plugs for 2006-2009 STS, XLR - TR7IX

Spark Plug, Iridium IX, Tapered Seat, 14mm Thread, .708 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-3690

5.0 out of 5 stars ( 13 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs LFR5AIX-11

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, 1.043 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-4469

4.86 out of 5 stars ( 14 )

Estimated Ship Date: Tomorrow

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NGK Racing Spark Plugs R5672A-8

Spark Plug, Racing, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: NGK-7173

4.75 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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Brisk Silver Racing Spark Plugs RR14S

Spark Plugs, Silver Racing, Silver, 14mm Thread Size, 25mm Reach, Tapered Seat, 14 Heat Range, Resistor, Each

Part Number: BIK-RR14S

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Brisk Silver Racing Spark Plugs ER10S

Spark Plug, Silver, 14mm Threads, 26.5mm Reach, Gasket Seat, Each

Part Number: BIK-ER10S

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs LTR6IX-11

Spark Plug, IX Iridium, 14mm Thread, 0.984 in. Reach, 5/8 in. Hex, Tapered Seat, Resistor, Each

Part Number: NGK-6509

4.43 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

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ACCEL C-Cut Performance Spark Plugs 0414S-4

Spark Plug, Shorty, U-Groove, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Set of 4

Part Number: ACC-0414S-4

4.49 out of 5 stars ( 61 )

Estimated Ship Date: Tomorrow

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NGK Racing Spark Plugs R7437-9

Spark Plug, Gasket Seat, 14mm, 1.040 in. Reach, R7437-9, Resistor, Projected Tip, Each

Part Number: NGK-4654

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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NGK Racing Spark Plugs R5673-8

Spark Plug, Racing, Tapered Seat, 14mm Thread, .460 in. Reach, Non-Resistor, Each

Part Number: NGK-3249

4.67 out of 5 stars ( 6 )

Estimated Ship Date: Aug 22, 2025 if ordered today

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Estimated Ship Date: Aug 22, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Motorcraft Platinum Spark Plugs ASF32PX

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Autolite Racing Spark Plugs R3932

Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. Reach, Each

Part Number: ATL-AR3932

4.88 out of 5 stars ( 17 )

Estimated Ship Date: Tomorrow

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NGK Racing Spark Plugs R5672A-9

Spark Plug, Racing, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-7405

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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Champion Racing Spark Plugs 1101S

Spark Plug, Racing, Nickel Alloy, 14mm Thread, 0.750 in. Reach, Gasket Seat, 13/16 in. Wrench Size, Set of 24

Part Number: CPN-1101S

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Autolite Copper Core Spark Plugs 25

Spark Plug, Copper Core, Tapered Seat, 14mm Thread, .460 in. Reach, Partial Projected, Resistor, Each

Part Number: ATL-25

4.82 out of 5 stars ( 17 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs BKR9EIX

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-2669

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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ACCEL Performance Spark Plugs P526S

Spark Plug, Double Platinum, Tapered Seat, 14mm Thread, .708 in. Reach, Projected Tip, Resistor, Each

Part Number: ACC-P526S

4.44 out of 5 stars ( 27 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs LFR7AIX

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, 1.043 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-2309

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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NGK Racing Spark Plugs R5724-8

Spark Plug, Racing, Tapered Seat, 14mm Thread, .708 in. Reach, Projected Tip, Non-Resistor, Each

Part Number: NGK-7317

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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NGK Ruthenium HX Spark Plugs TR5AHX

Spark Plugs, Ruthenium HX, Platinum, Resistor, 14mm Thread Size, 0.708 in. Reach, Tapered Seat, Each

Part Number: NGK-94567

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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ACCEL C-Cut Performance Spark Plugs 8198

Spark Plugs, Shorty, Tapered Seat, 14mm Thread, .460 in. Reach, Projected, Resistor, Set of 8

Part Number: ACC-8198

4.81 out of 5 stars ( 27 )

Estimated Ship Date: Tomorrow

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NGK Racing Spark Plugs R5673-7

Spark Plug, Racing, Tapered Seat, 14mm Thread, .460 in. Reach, Non-Resistor, Each

Part Number: NGK-2817

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Autolite Racing Spark Plugs R3934

Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. Reach, Each

Part Number: ATL-AR3934

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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NGK V-Power Spark Plugs WR5

Spark Plug, V-Power, Tapered Seat, 18mm Thread, .429 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-2438

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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NGK Laser Platinum Spark Plugs LZTR6AP11EG

Spark Plug, Laser Platinum, Tapered Seat, 14mm Thread, 25mm Reach, Resistor, Each

Part Number: NGK-97408

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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NGK Laser Iridium High Ignitability Spark Plugs SILZKR7B11

Spark Plug, Laser Iridium, Gasket Seat, 12mm Thread Size, 26.5mm Reach, Resistor, Each

Part Number: NGK-9723

5.0 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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NGK Iridium IX Spark Plugs BKR7EIX

Spark Plug, Iridium IX, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-2667

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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