Denso (3266) Q16PR-TP11 Double Platinum Spark Plug, Pack of 1

Denso Double Platinum Spark Plug Denso single platinum offers long life at an economical price. If you are not running a DIS Ignition system, then the majority of the plug wear will be at the center electrode, the platinum tip on the center electrode will offer extended life. Tapered cut ground electrode to reduce quenching. Copper core for better thermal conductivity. Machine rolled threads to reduce cross-threading and seizing. The plug insulator is constructed of purified alumina powder for extreme stress with 5 ribs to prevent flashover. Technical Specifications - 14mm Thread, 19mm (3/4") Reach, 5/8" (16mm) Hex Size, Gasket Seat, Resistor, Solid Terminal, Projected Tip, Platinum Tipped Center Electrode, Tapered Cut Ground Electrode,.044" (1.1mm) Gap