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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 127 Items.

Individual Parts

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Results 1 - 25 of 43

Autolite Racing Spark Plugs R3933

Autolite Racing Spark Plugs R3933

Autolite Racing Spark Plugs R3933

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

Part Number: ATL-AR3933

4.86 out of 5 stars ( 22 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R3924

Autolite Racing Spark Plugs R3924

Autolite Racing Spark Plugs R3924

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

Part Number: ATL-AR3924

4.69 out of 5 stars ( 16 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R3932

Autolite Racing Spark Plugs R3932

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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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R3934

Autolite Racing Spark Plugs R3934

Autolite Racing Spark Plugs R3934

Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. Reach, Non-Projected, 5/8 in. Hex, 0.024 in. Gap, Mfg. 4 Heat Range, Each

Part Number: ATL-AR3934

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R3923

Autolite Racing Spark Plugs R3923

Autolite Racing Spark Plugs R3923

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

Part Number: ATL-AR3923

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R3910

Autolite Racing Spark Plugs R3910

Autolite Racing Spark Plugs R3910

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

Part Number: ATL-AR3910

4.29 out of 5 stars ( 7 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R25

Autolite Racing Spark Plugs R25

Autolite Racing Spark Plugs R25

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.431 in. Reach, Each

Part Number: ATL-AR25

4.82 out of 5 stars ( 11 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R133

Autolite Racing Spark Plugs R133

Autolite Racing Spark Plugs R133

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.433 in. Reach, Each

Part Number: ATL-AR133

4.2 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R3910X

Autolite Racing Spark Plugs R3910X

Autolite Racing Spark Plugs R3910X

Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.930 in. Reach, Each

Part Number: ATL-AR3910X

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R134

Autolite Racing Spark Plugs R134

Autolite Racing Spark Plugs R134

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.433 in. Reach, Each

Part Number: ATL-AR134

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R3935

Autolite Racing Spark Plugs R3935

Autolite Racing Spark Plugs R3935

Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.750 in. Reach, Chromium Nickel Alloy Electrode Tip, Non-projected, 5/8 in. Wrench, Each

Part Number: ATL-AR3935

4.88 out of 5 stars ( 8 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R3911

Autolite Racing Spark Plugs R3911

Autolite Racing Spark Plugs R3911

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

Part Number: ATL-AR3911

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R24

Autolite Racing Spark Plugs R24

Autolite Racing Spark Plugs R24

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.431 in. Reach, Each

Part Number: ATL-AR24

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R5324

Autolite Racing Spark Plugs R5324

Autolite Racing Spark Plugs R5324

Spark Plug, Racing, Copper Core, Gasket Seat, 1 in. Reach, Each

Part Number: ATL-AR5324

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R32

Autolite Racing Spark Plugs R32

Autolite Racing Spark Plugs R32

Spark Plug, Racing, Copper Core, Tapered Seat, 18mm Thread, 0.433 in. Reach, Each

Part Number: ATL-AR32

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R12

Autolite Racing Spark Plugs R12

Autolite Racing Spark Plugs R12

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.460 in. Reach, Each

Part Number: ATL-AR12

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R3931

Autolite Racing Spark Plugs R3931

Autolite Racing Spark Plugs R3931

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

Part Number: ATL-AR3931

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R73

Autolite Racing Spark Plugs R73

Autolite Racing Spark Plugs R73

Spark Plug, Racing, Copper Core, Gasket Seat, 14mm Thread, 0.372 in. Reach, Each

Part Number: ATL-AR73

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R103

Autolite Racing Spark Plugs R103

Autolite Racing Spark Plugs R103

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.679 in. Reach, Each

Part Number: ATL-AR103

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R50

Autolite Racing Spark Plugs R50

Autolite Racing Spark Plugs R50

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

Part Number: ATL-AR50

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R51

Autolite Racing Spark Plugs R51

Autolite Racing Spark Plugs R51

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

Part Number: ATL-AR51

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs AR764

Autolite Racing Spark Plugs AR764

Autolite Racing Spark Plugs AR764

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.679 in. Reach, Each

Part Number: ATL-AR764

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R472

Autolite Racing Spark Plugs R472

Autolite Racing Spark Plugs R472

Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.679 in. Reach, Each

Part Number: ATL-AR472

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R2593

Autolite Racing Spark Plugs R2593

Autolite Racing Spark Plugs R2593

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

Part Number: ATL-AR2593

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

Autolite Racing Spark Plugs R4132

Autolite Racing Spark Plugs R4132

Autolite Racing Spark Plugs R4132

Spark Plug, Racing, Copper Core, Gasket Seat, 12mm Thread, 0.753 in. Reach, Each

Part Number: ATL-AR4132

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Estimated Ship Date: Tomorrow

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