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|Electrode Tip Material:||Resistor|
|Thread Diameter:||14 mm|
|Wrench Diameter:||13/16 in|
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Q:Is this autolite #403 is compatible with Champion #104 or NGK 5122
A:Yes Chun, the Autolite Copper Core Resistor Spark Plug with the part number 403 is compatible with Champion spark plug part number 104.