Hi-Performance Racing Spark Plug
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Autolite Hi-Performance Racing Spark Plug

Part No. AR51 Warranty Details  

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Actual racing spark plug used by many professional race car drivers. Provides a new Yttrium enhanced alloy allowing up to 8% reduction in sidewire temperature*, anti-corrosive nickel plating and cut back ground electrode for improved ignitability.
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Electrode Tip Material:Non Resistor
Reach:3/4 in
Resistor:Non Resistor
Seat Type:Gasket
Thread Diameter:14 mm
Tip Configuration:Power
Wrench Diameter:13/16 in
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