NGK Iridium IX Spark Plugs BPR5EIX-11 Stock Number 2115. Iridium IX Plug, 14mm Thread Size, 19mm (3/4″) Reach, 13/16″ (20.6mm) Hex Size, Gasket Seat, Resistor, Solid Terminal Nut, JIS Height, Projected Tip, Fine Wire (0.6mm) Iridium Center Electrode, Tapered Cut Ground Electrode, .043″ (1.1mm) Gap, Heat Range
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