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14mm Thread Size, 19mm (3/4") Reach, 13/16" (20.6mm) Hex Size, Gasket Seat, Resistor, Copper Core, Ring Gap Tip for Mazda Rotary Engines Only, Heat Range 6
Autolite spark plugs are engineered for every type of internal combustion engine. Resistor plugs minimize electronic interference and can aid in reducing electrode erosion. Copper core aids in cooling and improves resistance to fouling. Multi-ground, ring-gap designed specifically for Mazda rotary engines, features a surface gap quadruple electrode design for self cleaning and apex seal clearance. |
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= ultimate class
= premium class
= super class
= regular class
