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Performance Spark Plugs

1 - 18 of 18 results for Performance Spark Plugs

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Autolite Racing Hi-Performance Spark Plug - AR4152

Part #:: AR4152
Line:: ATO

Manufacturer's Defect Warranty

Seat: Flat

Thread Size: M12-1.25

Heat Range: 13 To 440

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NGK Racing Plug Number R6725-105 Spark Plug - 3857

Part #:: 3857
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M14-1.25

Heat Range: 11

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NGK Racing Plug Number R6725-11 Spark Plug - 4311

Part #:: 4311
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M14-1.25

Heat Range: 11

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NGK Racing Plug Number R6725-115 Spark Plug - 4482

Part #:: 4482
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M14-1.25

Heat Range: 12

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NGK Racing Plug Number R7438-9 Spark Plug - 4656

Part #:: 4656
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M14-1.25

Heat Range: 9

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NGK Racing Plug Number R7433-9 Spark Plug - 4660

Part #:: 4660
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M14-1.25

Heat Range: 9

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NGK Racing Plug Number R7420-105 Spark Plug - 4857

Part #:: 4857
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M14-1.25

Heat Range: 11

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NGK Racing Plug Number R7434-10 Spark Plug - 4894

Part #:: 4894
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M14-1.25

Heat Range: 10

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NGK Racing Plug Number R7435-10 Spark Plug - 4897

Part #:: 4897
Line:: NGK

1 Year Limited Warranty

Seat: Gasket

Thread Size: M14-1.25

Heat Range: 10

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NGK Racing Plug Number R7420-10 Spark Plug - 5501

Part #:: 5501
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M14-1.25

Heat Range: 10

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NGK Racing Plug Number R7420-9 Spark Plug - 6448

Part #:: 6448
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M14-1.25

Heat Range: 9

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NGK Racing Plug Number R7420-11 Spark Plug - 7756

Part #:: 7756
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M14-1.25

Heat Range: 11

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NGK Racing Plug Number R2556G-10 Spark Plug - 91185

Part #:: 91185
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M12-1.25

Hex Size (in): 5/8 Inch

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NGK Racing Plug Number R2558E-10 Spark Plug - 97278

Part #:: 97278
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M12-1.25

Heat Range: 10

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NGK Plug Number R7438-8 Spark Plug - 4905

Part #:: 4905
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M14-1.25

Heat Range: 8

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NGK Plug Number R2556G-8 Spark Plug - 91975

Part #:: 91975
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M12-1.25

Hex Size (in): 5/8 Inch

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NGK Iridium/Platinum Plug Number R2556G-9 Spark Plug - 93253

Part #:: 93253
Line:: NGK

1 Year Limited Warranty

Seat: Flat

Thread Size: M12-1.25

Hex Size (in): 5/8 Inch

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Champion Racing Spark Plug - 255

Part #:: 255
Line:: CHP

Manufacturer's Defect Warranty

Seat: Gasket

Thread Size: M14

Heat Range: 57