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Spark Plugs

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Autolite Racing Hi-Performance Spark Plug - AR13

Part #:: AR13
Line:: ATO

1 Year Limited Warranty

Seat: Tapered

Thread Size: M14

Heat Range: 11 To 350

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Autolite Racing Hi-Performance Spark Plug - AR23

Part #:: AR23
Line:: ATO

Manufacturer's Defect Warranty

Seat: Tapered

Thread Size: M14

Heat Range: 11 To 350