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Performance Spark Plugs

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Autolite Racing Hi-Performance Spark Plug - AR12

Part #:: AR12
Line:: ATO

1 Year Limited Warranty

Seat: Tapered

Thread Size: M14-1.25

Heat Range: 12

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Autolite Racing Hi-Performance Spark Plug - AR13

Part #:: AR13
Line:: ATO

1 Year Limited Warranty

Seat: Tapered

Thread Size: M14-1.25

Heat Range: 11 To 350

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Autolite Racing Hi-Performance Spark Plug - AR5324

Part #:: AR5324
Line:: ATO

1 Year Limited Warranty

Seat: Gasket

Thread Size: M14-1.25

Heat Range: 11 To 375