NGK 6993 BKR6EKU Multi-Ground Spark Plug Multi-ground electrodes improve ignition capabilities and are less sensitive to increased voltage requirements due to gap growth. Designed to specific manufacturer ignition requirements, NGK's multi-ground plugs maintain all the features of their standard plugs, including: Corrugated Ribs to Prevent Flashover Pure alumina silicate ceramic insulator, providing superior strength and better heat transfer Copper core to aid in heat removal Triple seals to prevent leakage Product Specifications Shell Thread Diameter14mm Thread Pitch1.25mm Seat Type Gasket Reach19mm (3/4") Hex Size5/8" (16mm) Terminal Type Solid Overall Height ISO Gap.024" (0.6mm) Center Electrode Material Nickel Type Standard Size2.5mm Projection Projected Ground Electrode Material Nickel Type Semi-Surface Discharge Quantity2 Specifications Resistor Yes Resistor Value5k Ohm Heat Range6 Features Intermittent Gap Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
